28956720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9281}}^1$

素因数の和:9310

約数の個数: 80

約数和(自身を含む): 96681312

約数和(自身を除く): 67724592

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 9281, 18562, 27843, 37124, 46405, 55686, 74248, 92810, 111372, 120653, 139215, 148496, 185620, 222744, 241306, 278430, 361959, 371240, 445488, 482612, 556860, 603265, 723918, 742480, 965224, 1113720, 1206530, 1447836, 1809795, 1930448, 2227440, 2413060, 2895672, 3619590, 4826120, 5791344, 7239180, 9652240, 14478360, 28956720]

約数ペア:

[(1, 28956720), (2, 14478360), (3, 9652240), (4, 7239180), (5, 5791344), (6, 4826120), (8, 3619590), (10, 2895672), (12, 2413060), (13, 2227440), (15, 1930448), (16, 1809795), (20, 1447836), (24, 1206530), (26, 1113720), (30, 965224), (39, 742480), (40, 723918), (48, 603265), (52, 556860), (60, 482612), (65, 445488), (78, 371240), (80, 361959), (104, 278430), (120, 241306), (130, 222744), (156, 185620), (195, 148496), (208, 139215), (240, 120653), (260, 111372), (312, 92810), (390, 74248), (520, 55686), (624, 46405), (780, 37124), (1040, 27843), (1560, 18562), (3120, 9281)]