639024880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{3217}}^1$

素因数の和:3434

約数の個数: 80

約数和(自身を含む): 1608897024

約数和(自身を除く): 969872144

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 191, 208, 260, 382, 520, 764, 955, 1040, 1528, 1910, 2483, 3056, 3217, 3820, 4966, 6434, 7640, 9932, 12415, 12868, 15280, 16085, 19864, 24830, 25736, 32170, 39728, 41821, 49660, 51472, 64340, 83642, 99320, 128680, 167284, 198640, 209105, 257360, 334568, 418210, 614447, 669136, 836420, 1228894, 1672840, 2457788, 3072235, 3345680, 4915576, 6144470, 7987811, 9831152, 12288940, 15975622, 24577880, 31951244, 39939055, 49155760, 63902488, 79878110, 127804976, 159756220, 319512440, 639024880]

約数ペア:

[(1, 639024880), (2, 319512440), (4, 159756220), (5, 127804976), (8, 79878110), (10, 63902488), (13, 49155760), (16, 39939055), (20, 31951244), (26, 24577880), (40, 15975622), (52, 12288940), (65, 9831152), (80, 7987811), (104, 6144470), (130, 4915576), (191, 3345680), (208, 3072235), (260, 2457788), (382, 1672840), (520, 1228894), (764, 836420), (955, 669136), (1040, 614447), (1528, 418210), (1910, 334568), (2483, 257360), (3056, 209105), (3217, 198640), (3820, 167284), (4966, 128680), (6434, 99320), (7640, 83642), (9932, 64340), (12415, 51472), (12868, 49660), (15280, 41821), (16085, 39728), (19864, 32170), (24830, 25736)]