21385000

素因数分解:

$2^3\times 5^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1$

素因数の和:93

約数の個数: 160

約数和(自身を含む): 62979840

約数和(自身を除く): 41594840

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 25, 26, 28, 35, 40, 47, 50, 52, 56, 65, 70, 91, 94, 100, 104, 125, 130, 140, 175, 182, 188, 200, 235, 250, 260, 280, 325, 329, 350, 364, 376, 455, 470, 500, 520, 611, 625, 650, 658, 700, 728, 875, 910, 940, 1000, 1175, 1222, 1250, 1300, 1316, 1400, 1625, 1645, 1750, 1820, 1880, 2275, 2350, 2444, 2500, 2600, 2632, 3055, 3250, 3290, 3500, 3640, 4277, 4375, 4550, 4700, 4888, 5000, 5875, 6110, 6500, 6580, 7000, 8125, 8225, 8554, 8750, 9100, 9400, 11375, 11750, 12220, 13000, 13160, 15275, 16250, 16450, 17108, 17500, 18200, 21385, 22750, 23500, 24440, 29375, 30550, 32500, 32900, 34216, 35000, 41125, 42770, 45500, 47000, 56875, 58750, 61100, 65000, 65800, 76375, 82250, 85540, 91000, 106925, 113750, 117500, 122200, 152750, 164500, 171080, 205625, 213850, 227500, 235000, 305500, 329000, 381875, 411250, 427700, 455000, 534625, 611000, 763750, 822500, 855400, 1069250, 1527500, 1645000, 2138500, 2673125, 3055000, 4277000, 5346250, 10692500, 21385000]

約数ペア:

[(1, 21385000), (2, 10692500), (4, 5346250), (5, 4277000), (7, 3055000), (8, 2673125), (10, 2138500), (13, 1645000), (14, 1527500), (20, 1069250), (25, 855400), (26, 822500), (28, 763750), (35, 611000), (40, 534625), (47, 455000), (50, 427700), (52, 411250), (56, 381875), (65, 329000), (70, 305500), (91, 235000), (94, 227500), (100, 213850), (104, 205625), (125, 171080), (130, 164500), (140, 152750), (175, 122200), (182, 117500), (188, 113750), (200, 106925), (235, 91000), (250, 85540), (260, 82250), (280, 76375), (325, 65800), (329, 65000), (350, 61100), (364, 58750), (376, 56875), (455, 47000), (470, 45500), (500, 42770), (520, 41125), (611, 35000), (625, 34216), (650, 32900), (658, 32500), (700, 30550), (728, 29375), (875, 24440), (910, 23500), (940, 22750), (1000, 21385), (1175, 18200), (1222, 17500), (1250, 17108), (1300, 16450), (1316, 16250), (1400, 15275), (1625, 13160), (1645, 13000), (1750, 12220), (1820, 11750), (1880, 11375), (2275, 9400), (2350, 9100), (2444, 8750), (2500, 8554), (2600, 8225), (2632, 8125), (3055, 7000), (3250, 6580), (3290, 6500), (3500, 6110), (3640, 5875), (4277, 5000), (4375, 4888), (4550, 4700)]