20115050

素因数分解:

$2^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{131}}^1$

素因数の和:263

約数の個数: 48

約数和(自身を含む): 39184992

約数和(自身を除く): 19069942

約数列:

[1, 2, 5, 10, 25, 37, 50, 74, 83, 131, 166, 185, 262, 370, 415, 655, 830, 925, 1310, 1850, 2075, 3071, 3275, 4150, 4847, 6142, 6550, 9694, 10873, 15355, 21746, 24235, 30710, 48470, 54365, 76775, 108730, 121175, 153550, 242350, 271825, 402301, 543650, 804602, 2011505, 4023010, 10057525, 20115050]

約数ペア:

[(1, 20115050), (2, 10057525), (5, 4023010), (10, 2011505), (25, 804602), (37, 543650), (50, 402301), (74, 271825), (83, 242350), (131, 153550), (166, 121175), (185, 108730), (262, 76775), (370, 54365), (415, 48470), (655, 30710), (830, 24235), (925, 21746), (1310, 15355), (1850, 10873), (2075, 9694), (3071, 6550), (3275, 6142), (4150, 4847)]