18644800

素因数分解:

$2^6\times 5^2\times {\mathrm{43}}^1\times {\mathrm{271}}^1$

素因数の和:336

約数の個数: 84

約数和(自身を含む): 47118016

約数和(自身を除く): 28473216

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 43, 50, 64, 80, 86, 100, 160, 172, 200, 215, 271, 320, 344, 400, 430, 542, 688, 800, 860, 1075, 1084, 1355, 1376, 1600, 1720, 2150, 2168, 2710, 2752, 3440, 4300, 4336, 5420, 6775, 6880, 8600, 8672, 10840, 11653, 13550, 13760, 17200, 17344, 21680, 23306, 27100, 34400, 43360, 46612, 54200, 58265, 68800, 86720, 93224, 108400, 116530, 186448, 216800, 233060, 291325, 372896, 433600, 466120, 582650, 745792, 932240, 1165300, 1864480, 2330600, 3728960, 4661200, 9322400, 18644800]

約数ペア:

[(1, 18644800), (2, 9322400), (4, 4661200), (5, 3728960), (8, 2330600), (10, 1864480), (16, 1165300), (20, 932240), (25, 745792), (32, 582650), (40, 466120), (43, 433600), (50, 372896), (64, 291325), (80, 233060), (86, 216800), (100, 186448), (160, 116530), (172, 108400), (200, 93224), (215, 86720), (271, 68800), (320, 58265), (344, 54200), (400, 46612), (430, 43360), (542, 34400), (688, 27100), (800, 23306), (860, 21680), (1075, 17344), (1084, 17200), (1355, 13760), (1376, 13550), (1600, 11653), (1720, 10840), (2150, 8672), (2168, 8600), (2710, 6880), (2752, 6775), (3440, 5420), (4300, 4336)]