19498750

素因数分解:

$2^1\times 5^4\times {\mathrm{19}}^1\times {\mathrm{821}}^1$

素因数の和:862

約数の個数: 40

約数和(自身を含む): 38518920

約数和(自身を除く): 19020170

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 125, 190, 250, 475, 625, 821, 950, 1250, 1642, 2375, 4105, 4750, 8210, 11875, 15599, 20525, 23750, 31198, 41050, 77995, 102625, 155990, 205250, 389975, 513125, 779950, 1026250, 1949875, 3899750, 9749375, 19498750]

約数ペア:

[(1, 19498750), (2, 9749375), (5, 3899750), (10, 1949875), (19, 1026250), (25, 779950), (38, 513125), (50, 389975), (95, 205250), (125, 155990), (190, 102625), (250, 77995), (475, 41050), (625, 31198), (821, 23750), (950, 20525), (1250, 15599), (1642, 11875), (2375, 8210), (4105, 4750)]