128821140

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{5381}}^1$

素因数の和:5422

約数の個数: 144

約数和(自身を含む): 470171520

約数和(自身を除く): 341350380

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, 5381, 5985, 7980, 10762, 11970, 16143, 21524, 23940, 26905, 32286, 37667, 48429, 53810, 64572, 75334, 80715, 96858, 102239, 107620, 113001, 150668, 161430, 188335, 193716, 204478, 226002, 242145, 306717, 322860, 339003, 376670, 408956, 452004, 484290, 511195, 565005, 613434, 678006, 715673, 753340, 920151, 968580, 1022390, 1130010, 1226868, 1356012, 1431346, 1533585, 1695015, 1840302, 2044780, 2147019, 2260020, 2862692, 3067170, 3390030, 3578365, 3680604, 4294038, 4600755, 6134340, 6441057, 6780060, 7156730, 8588076, 9201510, 10735095, 12882114, 14313460, 18403020, 21470190, 25764228, 32205285, 42940380, 64410570, 128821140]

約数ペア:

[(1, 128821140), (2, 64410570), (3, 42940380), (4, 32205285), (5, 25764228), (6, 21470190), (7, 18403020), (9, 14313460), (10, 12882114), (12, 10735095), (14, 9201510), (15, 8588076), (18, 7156730), (19, 6780060), (20, 6441057), (21, 6134340), (28, 4600755), (30, 4294038), (35, 3680604), (36, 3578365), (38, 3390030), (42, 3067170), (45, 2862692), (57, 2260020), (60, 2147019), (63, 2044780), (70, 1840302), (76, 1695015), (84, 1533585), (90, 1431346), (95, 1356012), (105, 1226868), (114, 1130010), (126, 1022390), (133, 968580), (140, 920151), (171, 753340), (180, 715673), (190, 678006), (210, 613434), (228, 565005), (252, 511195), (266, 484290), (285, 452004), (315, 408956), (342, 376670), (380, 339003), (399, 322860), (420, 306717), (532, 242145), (570, 226002), (630, 204478), (665, 193716), (684, 188335), (798, 161430), (855, 150668), (1140, 113001), (1197, 107620), (1260, 102239), (1330, 96858), (1596, 80715), (1710, 75334), (1995, 64572), (2394, 53810), (2660, 48429), (3420, 37667), (3990, 32286), (4788, 26905), (5381, 23940), (5985, 21524), (7980, 16143), (10762, 11970)]