28222480

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2467}}^1$

素因数の和:2504

約数の個数: 80

約数和(自身を含む): 77120064

約数和(自身を除く): 48897584

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 40, 44, 52, 55, 65, 80, 88, 104, 110, 130, 143, 176, 208, 220, 260, 286, 440, 520, 572, 715, 880, 1040, 1144, 1430, 2288, 2467, 2860, 4934, 5720, 9868, 11440, 12335, 19736, 24670, 27137, 32071, 39472, 49340, 54274, 64142, 98680, 108548, 128284, 135685, 160355, 197360, 217096, 256568, 271370, 320710, 352781, 434192, 513136, 542740, 641420, 705562, 1085480, 1282840, 1411124, 1763905, 2170960, 2565680, 2822248, 3527810, 5644496, 7055620, 14111240, 28222480]

約数ペア:

[(1, 28222480), (2, 14111240), (4, 7055620), (5, 5644496), (8, 3527810), (10, 2822248), (11, 2565680), (13, 2170960), (16, 1763905), (20, 1411124), (22, 1282840), (26, 1085480), (40, 705562), (44, 641420), (52, 542740), (55, 513136), (65, 434192), (80, 352781), (88, 320710), (104, 271370), (110, 256568), (130, 217096), (143, 197360), (176, 160355), (208, 135685), (220, 128284), (260, 108548), (286, 98680), (440, 64142), (520, 54274), (572, 49340), (715, 39472), (880, 32071), (1040, 27137), (1144, 24670), (1430, 19736), (2288, 12335), (2467, 11440), (2860, 9868), (4934, 5720)]