64864400

素因数分解:

$2^4\times 5^2\times {\mathrm{31}}^1\times {\mathrm{5231}}^1$

素因数の和:5280

約数の個数: 60

約数和(自身を含む): 160894464

約数和(自身を除く): 96030064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 124, 155, 200, 248, 310, 400, 496, 620, 775, 1240, 1550, 2480, 3100, 5231, 6200, 10462, 12400, 20924, 26155, 41848, 52310, 83696, 104620, 130775, 162161, 209240, 261550, 324322, 418480, 523100, 648644, 810805, 1046200, 1297288, 1621610, 2092400, 2594576, 3243220, 4054025, 6486440, 8108050, 12972880, 16216100, 32432200, 64864400]

約数ペア:

[(1, 64864400), (2, 32432200), (4, 16216100), (5, 12972880), (8, 8108050), (10, 6486440), (16, 4054025), (20, 3243220), (25, 2594576), (31, 2092400), (40, 1621610), (50, 1297288), (62, 1046200), (80, 810805), (100, 648644), (124, 523100), (155, 418480), (200, 324322), (248, 261550), (310, 209240), (400, 162161), (496, 130775), (620, 104620), (775, 83696), (1240, 52310), (1550, 41848), (2480, 26155), (3100, 20924), (5231, 12400), (6200, 10462)]