18404750

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{809}}^1$

素因数の和:846

約数の個数: 64

約数和(自身を含む): 42456960

約数和(自身を除く): 24052210

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 35, 50, 65, 70, 91, 125, 130, 175, 182, 250, 325, 350, 455, 650, 809, 875, 910, 1618, 1625, 1750, 2275, 3250, 4045, 4550, 5663, 8090, 10517, 11326, 11375, 20225, 21034, 22750, 28315, 40450, 52585, 56630, 73619, 101125, 105170, 141575, 147238, 202250, 262925, 283150, 368095, 525850, 707875, 736190, 1314625, 1415750, 1840475, 2629250, 3680950, 9202375, 18404750]

約数ペア:

[(1, 18404750), (2, 9202375), (5, 3680950), (7, 2629250), (10, 1840475), (13, 1415750), (14, 1314625), (25, 736190), (26, 707875), (35, 525850), (50, 368095), (65, 283150), (70, 262925), (91, 202250), (125, 147238), (130, 141575), (175, 105170), (182, 101125), (250, 73619), (325, 56630), (350, 52585), (455, 40450), (650, 28315), (809, 22750), (875, 21034), (910, 20225), (1618, 11375), (1625, 11326), (1750, 10517), (2275, 8090), (3250, 5663), (4045, 4550)]