77995000

素因数分解:

$2^3\times 5^4\times {\mathrm{19}}^1\times {\mathrm{821}}^1$

素因数の和:866

約数の個数: 80

約数和(自身を含む): 192594600

約数和(自身を除く): 114599600

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 125, 152, 190, 200, 250, 380, 475, 500, 625, 760, 821, 950, 1000, 1250, 1642, 1900, 2375, 2500, 3284, 3800, 4105, 4750, 5000, 6568, 8210, 9500, 11875, 15599, 16420, 19000, 20525, 23750, 31198, 32840, 41050, 47500, 62396, 77995, 82100, 95000, 102625, 124792, 155990, 164200, 205250, 311980, 389975, 410500, 513125, 623960, 779950, 821000, 1026250, 1559900, 1949875, 2052500, 3119800, 3899750, 4105000, 7799500, 9749375, 15599000, 19498750, 38997500, 77995000]

約数ペア:

[(1, 77995000), (2, 38997500), (4, 19498750), (5, 15599000), (8, 9749375), (10, 7799500), (19, 4105000), (20, 3899750), (25, 3119800), (38, 2052500), (40, 1949875), (50, 1559900), (76, 1026250), (95, 821000), (100, 779950), (125, 623960), (152, 513125), (190, 410500), (200, 389975), (250, 311980), (380, 205250), (475, 164200), (500, 155990), (625, 124792), (760, 102625), (821, 95000), (950, 82100), (1000, 77995), (1250, 62396), (1642, 47500), (1900, 41050), (2375, 32840), (2500, 31198), (3284, 23750), (3800, 20525), (4105, 19000), (4750, 16420), (5000, 15599), (6568, 11875), (8210, 9500)]