820369620

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{991}}^1$

素因数の和:1092

約数の個数: 240

約数和(自身を含む): 2984475648

約数和(自身を除く): 2164106028

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 73, 81, 84, 90, 105, 108, 126, 135, 140, 146, 162, 180, 189, 210, 219, 252, 270, 292, 315, 324, 365, 378, 405, 420, 438, 511, 540, 567, 630, 657, 730, 756, 810, 876, 945, 991, 1022, 1095, 1134, 1260, 1314, 1460, 1533, 1620, 1890, 1971, 1982, 2044, 2190, 2268, 2555, 2628, 2835, 2973, 3066, 3285, 3780, 3942, 3964, 4380, 4599, 4955, 5110, 5670, 5913, 5946, 6132, 6570, 6937, 7665, 7884, 8919, 9198, 9855, 9910, 10220, 11340, 11826, 11892, 13140, 13797, 13874, 14865, 15330, 17838, 18396, 19710, 19820, 20811, 22995, 23652, 26757, 27594, 27748, 29565, 29730, 30660, 34685, 35676, 39420, 41391, 41622, 44595, 45990, 53514, 55188, 59130, 59460, 62433, 68985, 69370, 72343, 80271, 82782, 83244, 89190, 91980, 104055, 107028, 118260, 124866, 133785, 137970, 138740, 144686, 160542, 165564, 178380, 187299, 206955, 208110, 217029, 249732, 267570, 275940, 289372, 312165, 321084, 361715, 374598, 401355, 413910, 416220, 434058, 506401, 535140, 561897, 624330, 651087, 723430, 749196, 802710, 827820, 868116, 936495, 1012802, 1085145, 1123794, 1248660, 1302174, 1446860, 1519203, 1605420, 1872990, 1953261, 2025604, 2170290, 2247588, 2532005, 2604348, 2809485, 3038406, 3255435, 3745980, 3906522, 4340580, 4557609, 5064010, 5618970, 5859783, 6076812, 6510870, 7596015, 7813044, 9115218, 9766305, 10128020, 11237940, 11719566, 13021740, 13672827, 15192030, 18230436, 19532610, 22788045, 23439132, 27345654, 29298915, 30384060, 39065220, 41018481, 45576090, 54691308, 58597830, 68364135, 82036962, 91152180, 117195660, 136728270, 164073924, 205092405, 273456540, 410184810, 820369620]

約数ペア:

[(1, 820369620), (2, 410184810), (3, 273456540), (4, 205092405), (5, 164073924), (6, 136728270), (7, 117195660), (9, 91152180), (10, 82036962), (12, 68364135), (14, 58597830), (15, 54691308), (18, 45576090), (20, 41018481), (21, 39065220), (27, 30384060), (28, 29298915), (30, 27345654), (35, 23439132), (36, 22788045), (42, 19532610), (45, 18230436), (54, 15192030), (60, 13672827), (63, 13021740), (70, 11719566), (73, 11237940), (81, 10128020), (84, 9766305), (90, 9115218), (105, 7813044), (108, 7596015), (126, 6510870), (135, 6076812), (140, 5859783), (146, 5618970), (162, 5064010), (180, 4557609), (189, 4340580), (210, 3906522), (219, 3745980), (252, 3255435), (270, 3038406), (292, 2809485), (315, 2604348), (324, 2532005), (365, 2247588), (378, 2170290), (405, 2025604), (420, 1953261), (438, 1872990), (511, 1605420), (540, 1519203), (567, 1446860), (630, 1302174), (657, 1248660), (730, 1123794), (756, 1085145), (810, 1012802), (876, 936495), (945, 868116), (991, 827820), (1022, 802710), (1095, 749196), (1134, 723430), (1260, 651087), (1314, 624330), (1460, 561897), (1533, 535140), (1620, 506401), (1890, 434058), (1971, 416220), (1982, 413910), (2044, 401355), (2190, 374598), (2268, 361715), (2555, 321084), (2628, 312165), (2835, 289372), (2973, 275940), (3066, 267570), (3285, 249732), (3780, 217029), (3942, 208110), (3964, 206955), (4380, 187299), (4599, 178380), (4955, 165564), (5110, 160542), (5670, 144686), (5913, 138740), (5946, 137970), (6132, 133785), (6570, 124866), (6937, 118260), (7665, 107028), (7884, 104055), (8919, 91980), (9198, 89190), (9855, 83244), (9910, 82782), (10220, 80271), (11340, 72343), (11826, 69370), (11892, 68985), (13140, 62433), (13797, 59460), (13874, 59130), (14865, 55188), (15330, 53514), (17838, 45990), (18396, 44595), (19710, 41622), (19820, 41391), (20811, 39420), (22995, 35676), (23652, 34685), (26757, 30660), (27594, 29730), (27748, 29565)]