20127500

素因数分解:

$2^2\times 5^4\times {\mathrm{83}}^1\times {\mathrm{97}}^1$

素因数の和:204

約数の個数: 60

約数和(自身を含む): 45004344

約数和(自身を除く): 24876844

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 83, 97, 100, 125, 166, 194, 250, 332, 388, 415, 485, 500, 625, 830, 970, 1250, 1660, 1940, 2075, 2425, 2500, 4150, 4850, 8051, 8300, 9700, 10375, 12125, 16102, 20750, 24250, 32204, 40255, 41500, 48500, 51875, 60625, 80510, 103750, 121250, 161020, 201275, 207500, 242500, 402550, 805100, 1006375, 2012750, 4025500, 5031875, 10063750, 20127500]

約数ペア:

[(1, 20127500), (2, 10063750), (4, 5031875), (5, 4025500), (10, 2012750), (20, 1006375), (25, 805100), (50, 402550), (83, 242500), (97, 207500), (100, 201275), (125, 161020), (166, 121250), (194, 103750), (250, 80510), (332, 60625), (388, 51875), (415, 48500), (485, 41500), (500, 40255), (625, 32204), (830, 24250), (970, 20750), (1250, 16102), (1660, 12125), (1940, 10375), (2075, 9700), (2425, 8300), (2500, 8051), (4150, 4850)]