400890720

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{19423}}^1$

素因数の和:19484

約数の個数: 96

約数和(自身を含む): 1292239872

約数和(自身を除く): 891349152

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 43, 48, 60, 80, 86, 96, 120, 129, 160, 172, 215, 240, 258, 344, 430, 480, 516, 645, 688, 860, 1032, 1290, 1376, 1720, 2064, 2580, 3440, 4128, 5160, 6880, 10320, 19423, 20640, 38846, 58269, 77692, 97115, 116538, 155384, 194230, 233076, 291345, 310768, 388460, 466152, 582690, 621536, 776920, 835189, 932304, 1165380, 1553840, 1670378, 1864608, 2330760, 2505567, 3107680, 3340756, 4175945, 4661520, 5011134, 6681512, 8351890, 9323040, 10022268, 12527835, 13363024, 16703780, 20044536, 25055670, 26726048, 33407560, 40089072, 50111340, 66815120, 80178144, 100222680, 133630240, 200445360, 400890720]

約数ペア:

[(1, 400890720), (2, 200445360), (3, 133630240), (4, 100222680), (5, 80178144), (6, 66815120), (8, 50111340), (10, 40089072), (12, 33407560), (15, 26726048), (16, 25055670), (20, 20044536), (24, 16703780), (30, 13363024), (32, 12527835), (40, 10022268), (43, 9323040), (48, 8351890), (60, 6681512), (80, 5011134), (86, 4661520), (96, 4175945), (120, 3340756), (129, 3107680), (160, 2505567), (172, 2330760), (215, 1864608), (240, 1670378), (258, 1553840), (344, 1165380), (430, 932304), (480, 835189), (516, 776920), (645, 621536), (688, 582690), (860, 466152), (1032, 388460), (1290, 310768), (1376, 291345), (1720, 233076), (2064, 194230), (2580, 155384), (3440, 116538), (4128, 97115), (5160, 77692), (6880, 58269), (10320, 38846), (19423, 20640)]