28449520

素因数分解:

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

素因数の和:2974

約数の個数: 60

約数和(自身を含む): 72729720

約数和(自身を除く): 44280200

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 121, 176, 220, 242, 440, 484, 605, 880, 968, 1210, 1936, 2420, 2939, 4840, 5878, 9680, 11756, 14695, 23512, 29390, 32329, 47024, 58780, 64658, 117560, 129316, 161645, 235120, 258632, 323290, 355619, 517264, 646580, 711238, 1293160, 1422476, 1778095, 2586320, 2844952, 3556190, 5689904, 7112380, 14224760, 28449520]

約数ペア:

[(1, 28449520), (2, 14224760), (4, 7112380), (5, 5689904), (8, 3556190), (10, 2844952), (11, 2586320), (16, 1778095), (20, 1422476), (22, 1293160), (40, 711238), (44, 646580), (55, 517264), (80, 355619), (88, 323290), (110, 258632), (121, 235120), (176, 161645), (220, 129316), (242, 117560), (440, 64658), (484, 58780), (605, 47024), (880, 32329), (968, 29390), (1210, 23512), (1936, 14695), (2420, 11756), (2939, 9680), (4840, 5878)]