20176901875

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{503}}^1\times {\mathrm{4937}}^1$

素因数の和:5473

約数の個数: 40

約数和(自身を含む): 27212014368

約数和(自身を除く): 7035112493

約数列:

[1, 5, 13, 25, 65, 125, 325, 503, 625, 1625, 2515, 4937, 6539, 8125, 12575, 24685, 32695, 62875, 64181, 123425, 163475, 314375, 320905, 617125, 817375, 1604525, 2483311, 3085625, 4086875, 8022625, 12416555, 32283043, 40113125, 62082775, 161415215, 310413875, 807076075, 1552069375, 4035380375, 20176901875]

約数ペア:

[(1, 20176901875), (5, 4035380375), (13, 1552069375), (25, 807076075), (65, 310413875), (125, 161415215), (325, 62082775), (503, 40113125), (625, 32283043), (1625, 12416555), (2515, 8022625), (4937, 4086875), (6539, 3085625), (8125, 2483311), (12575, 1604525), (24685, 817375), (32695, 617125), (62875, 320905), (64181, 314375), (123425, 163475)]