18637500

素因数分解:

$2^2\times 3^1\times 5^5\times 7^1\times {\mathrm{71}}^1$

素因数の和:110

約数の個数: 144

約数和(自身を含む): 62995968

約数和(自身を除く): 44358468

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 70, 71, 75, 84, 100, 105, 125, 140, 142, 150, 175, 210, 213, 250, 284, 300, 350, 355, 375, 420, 426, 497, 500, 525, 625, 700, 710, 750, 852, 875, 994, 1050, 1065, 1250, 1420, 1491, 1500, 1750, 1775, 1875, 1988, 2100, 2130, 2485, 2500, 2625, 2982, 3125, 3500, 3550, 3750, 4260, 4375, 4970, 5250, 5325, 5964, 6250, 7100, 7455, 7500, 8750, 8875, 9375, 9940, 10500, 10650, 12425, 12500, 13125, 14910, 17500, 17750, 18750, 21300, 21875, 24850, 26250, 26625, 29820, 35500, 37275, 37500, 43750, 44375, 49700, 52500, 53250, 62125, 65625, 74550, 87500, 88750, 106500, 124250, 131250, 133125, 149100, 177500, 186375, 221875, 248500, 262500, 266250, 310625, 372750, 443750, 532500, 621250, 665625, 745500, 887500, 931875, 1242500, 1331250, 1553125, 1863750, 2662500, 3106250, 3727500, 4659375, 6212500, 9318750, 18637500]

約数ペア:

[(1, 18637500), (2, 9318750), (3, 6212500), (4, 4659375), (5, 3727500), (6, 3106250), (7, 2662500), (10, 1863750), (12, 1553125), (14, 1331250), (15, 1242500), (20, 931875), (21, 887500), (25, 745500), (28, 665625), (30, 621250), (35, 532500), (42, 443750), (50, 372750), (60, 310625), (70, 266250), (71, 262500), (75, 248500), (84, 221875), (100, 186375), (105, 177500), (125, 149100), (140, 133125), (142, 131250), (150, 124250), (175, 106500), (210, 88750), (213, 87500), (250, 74550), (284, 65625), (300, 62125), (350, 53250), (355, 52500), (375, 49700), (420, 44375), (426, 43750), (497, 37500), (500, 37275), (525, 35500), (625, 29820), (700, 26625), (710, 26250), (750, 24850), (852, 21875), (875, 21300), (994, 18750), (1050, 17750), (1065, 17500), (1250, 14910), (1420, 13125), (1491, 12500), (1500, 12425), (1750, 10650), (1775, 10500), (1875, 9940), (1988, 9375), (2100, 8875), (2130, 8750), (2485, 7500), (2500, 7455), (2625, 7100), (2982, 6250), (3125, 5964), (3500, 5325), (3550, 5250), (3750, 4970), (4260, 4375)]