20939508720

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{745709}}^1$

素因数の和:745744

約数の個数: 160

約数和(自身を含む): 77673153600

約数和(自身を除く): 56733644880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 48, 52, 54, 60, 65, 72, 78, 80, 90, 104, 108, 117, 120, 130, 135, 144, 156, 180, 195, 208, 216, 234, 240, 260, 270, 312, 351, 360, 390, 432, 468, 520, 540, 585, 624, 702, 720, 780, 936, 1040, 1080, 1170, 1404, 1560, 1755, 1872, 2160, 2340, 2808, 3120, 3510, 4680, 5616, 7020, 9360, 14040, 28080, 745709, 1491418, 2237127, 2982836, 3728545, 4474254, 5965672, 6711381, 7457090, 8948508, 9694217, 11185635, 11931344, 13422762, 14914180, 17897016, 19388434, 20134143, 22371270, 26845524, 29082651, 29828360, 33556905, 35794032, 38776868, 40268286, 44742540, 48471085, 53691048, 58165302, 59656720, 67113810, 77553736, 80536572, 87247953, 89485080, 96942170, 100670715, 107382096, 116330604, 134227620, 145413255, 155107472, 161073144, 174495906, 178970160, 193884340, 201341430, 232661208, 261743859, 268455240, 290826510, 322146288, 348991812, 387768680, 402682860, 436239765, 465322416, 523487718, 536910480, 581653020, 697983624, 775537360, 805365720, 872479530, 1046975436, 1163306040, 1308719295, 1395967248, 1610731440, 1744959060, 2093950872, 2326612080, 2617438590, 3489918120, 4187901744, 5234877180, 6979836240, 10469754360, 20939508720]

約数ペア:

[(1, 20939508720), (2, 10469754360), (3, 6979836240), (4, 5234877180), (5, 4187901744), (6, 3489918120), (8, 2617438590), (9, 2326612080), (10, 2093950872), (12, 1744959060), (13, 1610731440), (15, 1395967248), (16, 1308719295), (18, 1163306040), (20, 1046975436), (24, 872479530), (26, 805365720), (27, 775537360), (30, 697983624), (36, 581653020), (39, 536910480), (40, 523487718), (45, 465322416), (48, 436239765), (52, 402682860), (54, 387768680), (60, 348991812), (65, 322146288), (72, 290826510), (78, 268455240), (80, 261743859), (90, 232661208), (104, 201341430), (108, 193884340), (117, 178970160), (120, 174495906), (130, 161073144), (135, 155107472), (144, 145413255), (156, 134227620), (180, 116330604), (195, 107382096), (208, 100670715), (216, 96942170), (234, 89485080), (240, 87247953), (260, 80536572), (270, 77553736), (312, 67113810), (351, 59656720), (360, 58165302), (390, 53691048), (432, 48471085), (468, 44742540), (520, 40268286), (540, 38776868), (585, 35794032), (624, 33556905), (702, 29828360), (720, 29082651), (780, 26845524), (936, 22371270), (1040, 20134143), (1080, 19388434), (1170, 17897016), (1404, 14914180), (1560, 13422762), (1755, 11931344), (1872, 11185635), (2160, 9694217), (2340, 8948508), (2808, 7457090), (3120, 6711381), (3510, 5965672), (4680, 4474254), (5616, 3728545), (7020, 2982836), (9360, 2237127), (14040, 1491418), (28080, 745709)]