21067440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2141}}^1$

素因数の和:2198

約数の個数: 80

約数和(自身を含む): 66933216

約数和(自身を除く): 45865776

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 41, 48, 60, 80, 82, 120, 123, 164, 205, 240, 246, 328, 410, 492, 615, 656, 820, 984, 1230, 1640, 1968, 2141, 2460, 3280, 4282, 4920, 6423, 8564, 9840, 10705, 12846, 17128, 21410, 25692, 32115, 34256, 42820, 51384, 64230, 85640, 87781, 102768, 128460, 171280, 175562, 256920, 263343, 351124, 438905, 513840, 526686, 702248, 877810, 1053372, 1316715, 1404496, 1755620, 2106744, 2633430, 3511240, 4213488, 5266860, 7022480, 10533720, 21067440]

約数ペア:

[(1, 21067440), (2, 10533720), (3, 7022480), (4, 5266860), (5, 4213488), (6, 3511240), (8, 2633430), (10, 2106744), (12, 1755620), (15, 1404496), (16, 1316715), (20, 1053372), (24, 877810), (30, 702248), (40, 526686), (41, 513840), (48, 438905), (60, 351124), (80, 263343), (82, 256920), (120, 175562), (123, 171280), (164, 128460), (205, 102768), (240, 87781), (246, 85640), (328, 64230), (410, 51384), (492, 42820), (615, 34256), (656, 32115), (820, 25692), (984, 21410), (1230, 17128), (1640, 12846), (1968, 10705), (2141, 9840), (2460, 8564), (3280, 6423), (4282, 4920)]