80220560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{4621}}^1$

素因数の和:4672

約数の個数: 80

約数和(自身を含む): 220081152

約数和(自身を除く): 139860592

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, 1736, 2170, 2480, 3472, 4340, 4621, 8680, 9242, 17360, 18484, 23105, 32347, 36968, 46210, 64694, 73936, 92420, 129388, 143251, 161735, 184840, 258776, 286502, 323470, 369680, 517552, 573004, 646940, 716255, 1002757, 1146008, 1293880, 1432510, 2005514, 2292016, 2587760, 2865020, 4011028, 5013785, 5730040, 8022056, 10027570, 11460080, 16044112, 20055140, 40110280, 80220560]

約数ペア:

[(1, 80220560), (2, 40110280), (4, 20055140), (5, 16044112), (7, 11460080), (8, 10027570), (10, 8022056), (14, 5730040), (16, 5013785), (20, 4011028), (28, 2865020), (31, 2587760), (35, 2292016), (40, 2005514), (56, 1432510), (62, 1293880), (70, 1146008), (80, 1002757), (112, 716255), (124, 646940), (140, 573004), (155, 517552), (217, 369680), (248, 323470), (280, 286502), (310, 258776), (434, 184840), (496, 161735), (560, 143251), (620, 129388), (868, 92420), (1085, 73936), (1240, 64694), (1736, 46210), (2170, 36968), (2480, 32347), (3472, 23105), (4340, 18484), (4621, 17360), (8680, 9242)]