128964780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{5387}}^1$

素因数の和:5428

約数の個数: 144

約数和(自身を含む): 470695680

約数和(自身を除く): 341730900

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 28, 30, 35, 36, 38, 42, 45, 57, 60, 63, 70, 76, 84, 90, 95, 105, 114, 126, 133, 140, 171, 180, 190, 210, 228, 252, 266, 285, 315, 342, 380, 399, 420, 532, 570, 630, 665, 684, 798, 855, 1140, 1197, 1260, 1330, 1596, 1710, 1995, 2394, 2660, 3420, 3990, 4788, 5387, 5985, 7980, 10774, 11970, 16161, 21548, 23940, 26935, 32322, 37709, 48483, 53870, 64644, 75418, 80805, 96966, 102353, 107740, 113127, 150836, 161610, 188545, 193932, 204706, 226254, 242415, 307059, 323220, 339381, 377090, 409412, 452508, 484830, 511765, 565635, 614118, 678762, 716471, 754180, 921177, 969660, 1023530, 1131270, 1228236, 1357524, 1432942, 1535295, 1696905, 1842354, 2047060, 2149413, 2262540, 2865884, 3070590, 3393810, 3582355, 3684708, 4298826, 4605885, 6141180, 6448239, 6787620, 7164710, 8597652, 9211770, 10747065, 12896478, 14329420, 18423540, 21494130, 25792956, 32241195, 42988260, 64482390, 128964780]

約数ペア:

[(1, 128964780), (2, 64482390), (3, 42988260), (4, 32241195), (5, 25792956), (6, 21494130), (7, 18423540), (9, 14329420), (10, 12896478), (12, 10747065), (14, 9211770), (15, 8597652), (18, 7164710), (19, 6787620), (20, 6448239), (21, 6141180), (28, 4605885), (30, 4298826), (35, 3684708), (36, 3582355), (38, 3393810), (42, 3070590), (45, 2865884), (57, 2262540), (60, 2149413), (63, 2047060), (70, 1842354), (76, 1696905), (84, 1535295), (90, 1432942), (95, 1357524), (105, 1228236), (114, 1131270), (126, 1023530), (133, 969660), (140, 921177), (171, 754180), (180, 716471), (190, 678762), (210, 614118), (228, 565635), (252, 511765), (266, 484830), (285, 452508), (315, 409412), (342, 377090), (380, 339381), (399, 323220), (420, 307059), (532, 242415), (570, 226254), (630, 204706), (665, 193932), (684, 188545), (798, 161610), (855, 150836), (1140, 113127), (1197, 107740), (1260, 102353), (1330, 96966), (1596, 80805), (1710, 75418), (1995, 64644), (2394, 53870), (2660, 48483), (3420, 37709), (3990, 32322), (4788, 26935), (5387, 23940), (5985, 21548), (7980, 16161), (10774, 11970)]