18045250

素因数分解:

$2^1\times 5^3\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1$

素因数の和:196

約数の個数: 64

約数和(自身を含む): 37065600

約数和(自身を除く): 19020350

約数列:

[1, 2, 5, 10, 19, 25, 29, 38, 50, 58, 95, 125, 131, 145, 190, 250, 262, 290, 475, 551, 655, 725, 950, 1102, 1310, 1450, 2375, 2489, 2755, 3275, 3625, 3799, 4750, 4978, 5510, 6550, 7250, 7598, 12445, 13775, 16375, 18995, 24890, 27550, 32750, 37990, 62225, 68875, 72181, 94975, 124450, 137750, 144362, 189950, 311125, 360905, 474875, 622250, 721810, 949750, 1804525, 3609050, 9022625, 18045250]

約数ペア:

[(1, 18045250), (2, 9022625), (5, 3609050), (10, 1804525), (19, 949750), (25, 721810), (29, 622250), (38, 474875), (50, 360905), (58, 311125), (95, 189950), (125, 144362), (131, 137750), (145, 124450), (190, 94975), (250, 72181), (262, 68875), (290, 62225), (475, 37990), (551, 32750), (655, 27550), (725, 24890), (950, 18995), (1102, 16375), (1310, 13775), (1450, 12445), (2375, 7598), (2489, 7250), (2755, 6550), (3275, 5510), (3625, 4978), (3799, 4750)]