128871990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{4789}}^1$

素因数の和:4838

約数の個数: 96

約数和(自身を含む): 376608960

約数和(自身を除く): 247736970

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 23, 26, 30, 39, 45, 46, 65, 69, 78, 90, 115, 117, 130, 138, 195, 207, 230, 234, 299, 345, 390, 414, 585, 598, 690, 897, 1035, 1170, 1495, 1794, 2070, 2691, 2990, 4485, 4789, 5382, 8970, 9578, 13455, 14367, 23945, 26910, 28734, 43101, 47890, 62257, 71835, 86202, 110147, 124514, 143670, 186771, 215505, 220294, 311285, 330441, 373542, 431010, 550735, 560313, 622570, 660882, 933855, 991323, 1101470, 1120626, 1431911, 1652205, 1867710, 1982646, 2801565, 2863822, 3304410, 4295733, 4956615, 5603130, 7159555, 8591466, 9913230, 12887199, 14319110, 21478665, 25774398, 42957330, 64435995, 128871990]

約数ペア:

[(1, 128871990), (2, 64435995), (3, 42957330), (5, 25774398), (6, 21478665), (9, 14319110), (10, 12887199), (13, 9913230), (15, 8591466), (18, 7159555), (23, 5603130), (26, 4956615), (30, 4295733), (39, 3304410), (45, 2863822), (46, 2801565), (65, 1982646), (69, 1867710), (78, 1652205), (90, 1431911), (115, 1120626), (117, 1101470), (130, 991323), (138, 933855), (195, 660882), (207, 622570), (230, 560313), (234, 550735), (299, 431010), (345, 373542), (390, 330441), (414, 311285), (585, 220294), (598, 215505), (690, 186771), (897, 143670), (1035, 124514), (1170, 110147), (1495, 86202), (1794, 71835), (2070, 62257), (2691, 47890), (2990, 43101), (4485, 28734), (4789, 26910), (5382, 23945), (8970, 14367), (9578, 13455)]