18784480

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{821}}^1$

素因数の和:860

約数の個数: 96

約数和(自身を含む): 52200288

約数和(自身を除く): 33415808

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 32, 40, 44, 52, 55, 65, 80, 88, 104, 110, 130, 143, 160, 176, 208, 220, 260, 286, 352, 416, 440, 520, 572, 715, 821, 880, 1040, 1144, 1430, 1642, 1760, 2080, 2288, 2860, 3284, 4105, 4576, 5720, 6568, 8210, 9031, 10673, 11440, 13136, 16420, 18062, 21346, 22880, 26272, 32840, 36124, 42692, 45155, 53365, 65680, 72248, 85384, 90310, 106730, 117403, 131360, 144496, 170768, 180620, 213460, 234806, 288992, 341536, 361240, 426920, 469612, 587015, 722480, 853840, 939224, 1174030, 1444960, 1707680, 1878448, 2348060, 3756896, 4696120, 9392240, 18784480]

約数ペア:

[(1, 18784480), (2, 9392240), (4, 4696120), (5, 3756896), (8, 2348060), (10, 1878448), (11, 1707680), (13, 1444960), (16, 1174030), (20, 939224), (22, 853840), (26, 722480), (32, 587015), (40, 469612), (44, 426920), (52, 361240), (55, 341536), (65, 288992), (80, 234806), (88, 213460), (104, 180620), (110, 170768), (130, 144496), (143, 131360), (160, 117403), (176, 106730), (208, 90310), (220, 85384), (260, 72248), (286, 65680), (352, 53365), (416, 45155), (440, 42692), (520, 36124), (572, 32840), (715, 26272), (821, 22880), (880, 21346), (1040, 18062), (1144, 16420), (1430, 13136), (1642, 11440), (1760, 10673), (2080, 9031), (2288, 8210), (2860, 6568), (3284, 5720), (4105, 4576)]