80175920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2939}}^1$

素因数の和:2994

約数の個数: 80

約数和(自身を含む): 209986560

約数和(自身を除く): 129810640

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 80, 88, 110, 124, 155, 176, 220, 248, 310, 341, 440, 496, 620, 682, 880, 1240, 1364, 1705, 2480, 2728, 2939, 3410, 5456, 5878, 6820, 11756, 13640, 14695, 23512, 27280, 29390, 32329, 47024, 58780, 64658, 91109, 117560, 129316, 161645, 182218, 235120, 258632, 323290, 364436, 455545, 517264, 646580, 728872, 911090, 1002199, 1293160, 1457744, 1822180, 2004398, 2586320, 3644360, 4008796, 5010995, 7288720, 8017592, 10021990, 16035184, 20043980, 40087960, 80175920]

約数ペア:

[(1, 80175920), (2, 40087960), (4, 20043980), (5, 16035184), (8, 10021990), (10, 8017592), (11, 7288720), (16, 5010995), (20, 4008796), (22, 3644360), (31, 2586320), (40, 2004398), (44, 1822180), (55, 1457744), (62, 1293160), (80, 1002199), (88, 911090), (110, 728872), (124, 646580), (155, 517264), (176, 455545), (220, 364436), (248, 323290), (310, 258632), (341, 235120), (440, 182218), (496, 161645), (620, 129316), (682, 117560), (880, 91109), (1240, 64658), (1364, 58780), (1705, 47024), (2480, 32329), (2728, 29390), (2939, 27280), (3410, 23512), (5456, 14695), (5878, 13640), (6820, 11756)]