321228180

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2179}}^1$

素因数の和:2220

約数の個数: 240

約数和(自身を含む): 1240821120

約数和(自身を除く): 919592940

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 27, 28, 30, 35, 36, 39, 42, 45, 52, 54, 60, 63, 65, 70, 78, 81, 84, 90, 91, 105, 108, 117, 126, 130, 135, 140, 156, 162, 180, 182, 189, 195, 210, 234, 252, 260, 270, 273, 315, 324, 351, 364, 378, 390, 405, 420, 455, 468, 540, 546, 567, 585, 630, 702, 756, 780, 810, 819, 910, 945, 1053, 1092, 1134, 1170, 1260, 1365, 1404, 1620, 1638, 1755, 1820, 1890, 2106, 2179, 2268, 2340, 2457, 2730, 2835, 3276, 3510, 3780, 4095, 4212, 4358, 4914, 5265, 5460, 5670, 6537, 7020, 7371, 8190, 8716, 9828, 10530, 10895, 11340, 12285, 13074, 14742, 15253, 16380, 19611, 21060, 21790, 24570, 26148, 28327, 29484, 30506, 32685, 36855, 39222, 43580, 45759, 49140, 56654, 58833, 61012, 65370, 73710, 76265, 78444, 84981, 91518, 98055, 113308, 117666, 130740, 137277, 141635, 147420, 152530, 169962, 176499, 183036, 196110, 198289, 228795, 235332, 254943, 274554, 283270, 294165, 305060, 339924, 352998, 392220, 396578, 411831, 424905, 457590, 509886, 549108, 566540, 588330, 594867, 686385, 705996, 764829, 793156, 823662, 849810, 882495, 915180, 991445, 1019772, 1176660, 1189734, 1235493, 1274715, 1372770, 1529658, 1647324, 1699620, 1764990, 1784601, 1982890, 2059155, 2294487, 2379468, 2470986, 2549430, 2745540, 2974335, 3059316, 3529980, 3569202, 3824145, 3965780, 4118310, 4588974, 4941972, 5098860, 5353803, 5948670, 6177465, 7138404, 7648290, 8236620, 8923005, 9177948, 10707606, 11472435, 11897340, 12354930, 15296580, 16061409, 17846010, 21415212, 22944870, 24709860, 26769015, 32122818, 35692020, 45889740, 53538030, 64245636, 80307045, 107076060, 160614090, 321228180]

約数ペア:

[(1, 321228180), (2, 160614090), (3, 107076060), (4, 80307045), (5, 64245636), (6, 53538030), (7, 45889740), (9, 35692020), (10, 32122818), (12, 26769015), (13, 24709860), (14, 22944870), (15, 21415212), (18, 17846010), (20, 16061409), (21, 15296580), (26, 12354930), (27, 11897340), (28, 11472435), (30, 10707606), (35, 9177948), (36, 8923005), (39, 8236620), (42, 7648290), (45, 7138404), (52, 6177465), (54, 5948670), (60, 5353803), (63, 5098860), (65, 4941972), (70, 4588974), (78, 4118310), (81, 3965780), (84, 3824145), (90, 3569202), (91, 3529980), (105, 3059316), (108, 2974335), (117, 2745540), (126, 2549430), (130, 2470986), (135, 2379468), (140, 2294487), (156, 2059155), (162, 1982890), (180, 1784601), (182, 1764990), (189, 1699620), (195, 1647324), (210, 1529658), (234, 1372770), (252, 1274715), (260, 1235493), (270, 1189734), (273, 1176660), (315, 1019772), (324, 991445), (351, 915180), (364, 882495), (378, 849810), (390, 823662), (405, 793156), (420, 764829), (455, 705996), (468, 686385), (540, 594867), (546, 588330), (567, 566540), (585, 549108), (630, 509886), (702, 457590), (756, 424905), (780, 411831), (810, 396578), (819, 392220), (910, 352998), (945, 339924), (1053, 305060), (1092, 294165), (1134, 283270), (1170, 274554), (1260, 254943), (1365, 235332), (1404, 228795), (1620, 198289), (1638, 196110), (1755, 183036), (1820, 176499), (1890, 169962), (2106, 152530), (2179, 147420), (2268, 141635), (2340, 137277), (2457, 130740), (2730, 117666), (2835, 113308), (3276, 98055), (3510, 91518), (3780, 84981), (4095, 78444), (4212, 76265), (4358, 73710), (4914, 65370), (5265, 61012), (5460, 58833), (5670, 56654), (6537, 49140), (7020, 45759), (7371, 43580), (8190, 39222), (8716, 36855), (9828, 32685), (10530, 30506), (10895, 29484), (11340, 28327), (12285, 26148), (13074, 24570), (14742, 21790), (15253, 21060), (16380, 19611)]