28140560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1621}}^1$

素因数の和:1672

約数の個数: 80

約数和(自身を含む): 77233152

約数和(自身を除く): 49092592

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 217, 248, 280, 310, 434, 496, 560, 620, 868, 1085, 1240, 1621, 1736, 2170, 2480, 3242, 3472, 4340, 6484, 8105, 8680, 11347, 12968, 16210, 17360, 22694, 25936, 32420, 45388, 50251, 56735, 64840, 90776, 100502, 113470, 129680, 181552, 201004, 226940, 251255, 351757, 402008, 453880, 502510, 703514, 804016, 907760, 1005020, 1407028, 1758785, 2010040, 2814056, 3517570, 4020080, 5628112, 7035140, 14070280, 28140560]

約数ペア:

[(1, 28140560), (2, 14070280), (4, 7035140), (5, 5628112), (7, 4020080), (8, 3517570), (10, 2814056), (14, 2010040), (16, 1758785), (20, 1407028), (28, 1005020), (31, 907760), (35, 804016), (40, 703514), (56, 502510), (62, 453880), (70, 402008), (80, 351757), (112, 251255), (124, 226940), (140, 201004), (155, 181552), (217, 129680), (248, 113470), (280, 100502), (310, 90776), (434, 64840), (496, 56735), (560, 50251), (620, 45388), (868, 32420), (1085, 25936), (1240, 22694), (1621, 17360), (1736, 16210), (2170, 12968), (2480, 11347), (3242, 8680), (3472, 8105), (4340, 6484)]