253340360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{881}}^1$

素因数の和:991

約数の個数: 128

約数和(自身を含む): 711244800

約数和(自身を除く): 457904440

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 79, 91, 104, 130, 140, 158, 182, 260, 280, 316, 364, 395, 455, 520, 553, 632, 728, 790, 881, 910, 1027, 1106, 1580, 1762, 1820, 2054, 2212, 2765, 3160, 3524, 3640, 4108, 4405, 4424, 5135, 5530, 6167, 7048, 7189, 8216, 8810, 10270, 11060, 11453, 12334, 14378, 17620, 20540, 22120, 22906, 24668, 28756, 30835, 35240, 35945, 41080, 45812, 49336, 57265, 57512, 61670, 69599, 71890, 80171, 91624, 114530, 123340, 139198, 143780, 160342, 229060, 246680, 278396, 287560, 320684, 347995, 400855, 458120, 487193, 556792, 641368, 695990, 801710, 904787, 974386, 1391980, 1603420, 1809574, 1948772, 2435965, 2783960, 3206840, 3619148, 3897544, 4523935, 4871930, 6333509, 7238296, 9047870, 9743860, 12667018, 18095740, 19487720, 25334036, 31667545, 36191480, 50668072, 63335090, 126670180, 253340360]

約数ペア:

[(1, 253340360), (2, 126670180), (4, 63335090), (5, 50668072), (7, 36191480), (8, 31667545), (10, 25334036), (13, 19487720), (14, 18095740), (20, 12667018), (26, 9743860), (28, 9047870), (35, 7238296), (40, 6333509), (52, 4871930), (56, 4523935), (65, 3897544), (70, 3619148), (79, 3206840), (91, 2783960), (104, 2435965), (130, 1948772), (140, 1809574), (158, 1603420), (182, 1391980), (260, 974386), (280, 904787), (316, 801710), (364, 695990), (395, 641368), (455, 556792), (520, 487193), (553, 458120), (632, 400855), (728, 347995), (790, 320684), (881, 287560), (910, 278396), (1027, 246680), (1106, 229060), (1580, 160342), (1762, 143780), (1820, 139198), (2054, 123340), (2212, 114530), (2765, 91624), (3160, 80171), (3524, 71890), (3640, 69599), (4108, 61670), (4405, 57512), (4424, 57265), (5135, 49336), (5530, 45812), (6167, 41080), (7048, 35945), (7189, 35240), (8216, 30835), (8810, 28756), (10270, 24668), (11060, 22906), (11453, 22120), (12334, 20540), (14378, 17620)]