140628280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{71}}^1\times {\mathrm{293}}^1$

素因数の和:401

約数の個数: 96

約数和(自身を含む): 348636960

約数和(自身を除く): 208008680

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 71, 104, 130, 142, 169, 260, 284, 293, 338, 355, 520, 568, 586, 676, 710, 845, 923, 1172, 1352, 1420, 1465, 1690, 1846, 2344, 2840, 2930, 3380, 3692, 3809, 4615, 5860, 6760, 7384, 7618, 9230, 11720, 11999, 15236, 18460, 19045, 20803, 23998, 30472, 36920, 38090, 41606, 47996, 49517, 59995, 76180, 83212, 95992, 99034, 104015, 119990, 152360, 166424, 198068, 208030, 239980, 247585, 270439, 396136, 416060, 479960, 495170, 540878, 832120, 990340, 1081756, 1352195, 1980680, 2163512, 2704390, 3515707, 5408780, 7031414, 10817560, 14062828, 17578535, 28125656, 35157070, 70314140, 140628280]

約数ペア:

[(1, 140628280), (2, 70314140), (4, 35157070), (5, 28125656), (8, 17578535), (10, 14062828), (13, 10817560), (20, 7031414), (26, 5408780), (40, 3515707), (52, 2704390), (65, 2163512), (71, 1980680), (104, 1352195), (130, 1081756), (142, 990340), (169, 832120), (260, 540878), (284, 495170), (293, 479960), (338, 416060), (355, 396136), (520, 270439), (568, 247585), (586, 239980), (676, 208030), (710, 198068), (845, 166424), (923, 152360), (1172, 119990), (1352, 104015), (1420, 99034), (1465, 95992), (1690, 83212), (1846, 76180), (2344, 59995), (2840, 49517), (2930, 47996), (3380, 41606), (3692, 38090), (3809, 36920), (4615, 30472), (5860, 23998), (6760, 20803), (7384, 19045), (7618, 18460), (9230, 15236), (11720, 11999)]