28773700

素因数分解:

$2^2\times 5^2\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:217

約数の個数: 72

約数和(自身を含む): 65386440

約数和(自身を除く): 36612740

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 53, 61, 89, 100, 106, 122, 178, 212, 244, 265, 305, 356, 445, 530, 610, 890, 1060, 1220, 1325, 1525, 1780, 2225, 2650, 3050, 3233, 4450, 4717, 5300, 5429, 6100, 6466, 8900, 9434, 10858, 12932, 16165, 18868, 21716, 23585, 27145, 32330, 47170, 54290, 64660, 80825, 94340, 108580, 117925, 135725, 161650, 235850, 271450, 287737, 323300, 471700, 542900, 575474, 1150948, 1438685, 2877370, 5754740, 7193425, 14386850, 28773700]

約数ペア:

[(1, 28773700), (2, 14386850), (4, 7193425), (5, 5754740), (10, 2877370), (20, 1438685), (25, 1150948), (50, 575474), (53, 542900), (61, 471700), (89, 323300), (100, 287737), (106, 271450), (122, 235850), (178, 161650), (212, 135725), (244, 117925), (265, 108580), (305, 94340), (356, 80825), (445, 64660), (530, 54290), (610, 47170), (890, 32330), (1060, 27145), (1220, 23585), (1325, 21716), (1525, 18868), (1780, 16165), (2225, 12932), (2650, 10858), (3050, 9434), (3233, 8900), (4450, 6466), (4717, 6100), (5300, 5429)]