779969260

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{223}}^1$

素因数の和:372

約数の個数: 144

約数和(自身を含む): 1982002176

約数和(自身を除く): 1202032916

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 49, 70, 83, 86, 98, 140, 166, 172, 196, 215, 223, 245, 301, 332, 415, 430, 446, 490, 581, 602, 830, 860, 892, 980, 1115, 1162, 1204, 1505, 1561, 1660, 2107, 2230, 2324, 2905, 3010, 3122, 3569, 4067, 4214, 4460, 5810, 6020, 6244, 7138, 7805, 8134, 8428, 9589, 10535, 10927, 11620, 14276, 15610, 16268, 17845, 18509, 19178, 20335, 21070, 21854, 24983, 31220, 35690, 37018, 38356, 40670, 42140, 43708, 47945, 49966, 54635, 67123, 71380, 74036, 81340, 92545, 95890, 99932, 109270, 124915, 129563, 134246, 174881, 185090, 191780, 218540, 249830, 259126, 268492, 335615, 349762, 370180, 469861, 499660, 518252, 647815, 671230, 699524, 795887, 874405, 906941, 939722, 1295630, 1342460, 1591774, 1748810, 1813882, 1879444, 2349305, 2591260, 3183548, 3497620, 3627764, 3979435, 4534705, 4698610, 5571209, 7958870, 9069410, 9397220, 11142418, 15917740, 18138820, 22284836, 27856045, 38998463, 55712090, 77996926, 111424180, 155993852, 194992315, 389984630, 779969260]

約数ペア:

[(1, 779969260), (2, 389984630), (4, 194992315), (5, 155993852), (7, 111424180), (10, 77996926), (14, 55712090), (20, 38998463), (28, 27856045), (35, 22284836), (43, 18138820), (49, 15917740), (70, 11142418), (83, 9397220), (86, 9069410), (98, 7958870), (140, 5571209), (166, 4698610), (172, 4534705), (196, 3979435), (215, 3627764), (223, 3497620), (245, 3183548), (301, 2591260), (332, 2349305), (415, 1879444), (430, 1813882), (446, 1748810), (490, 1591774), (581, 1342460), (602, 1295630), (830, 939722), (860, 906941), (892, 874405), (980, 795887), (1115, 699524), (1162, 671230), (1204, 647815), (1505, 518252), (1561, 499660), (1660, 469861), (2107, 370180), (2230, 349762), (2324, 335615), (2905, 268492), (3010, 259126), (3122, 249830), (3569, 218540), (4067, 191780), (4214, 185090), (4460, 174881), (5810, 134246), (6020, 129563), (6244, 124915), (7138, 109270), (7805, 99932), (8134, 95890), (8428, 92545), (9589, 81340), (10535, 74036), (10927, 71380), (11620, 67123), (14276, 54635), (15610, 49966), (16268, 47945), (17845, 43708), (18509, 42140), (19178, 40670), (20335, 38356), (21070, 37018), (21854, 35690), (24983, 31220)]