68502980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{283}}^1$

素因数の和:338

約数の個数: 144

約数和(自身を含む): 190370880

約数和(自身を除く): 121867900

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 19, 20, 26, 28, 35, 38, 49, 52, 65, 70, 76, 91, 95, 98, 130, 133, 140, 182, 190, 196, 245, 247, 260, 266, 283, 364, 380, 455, 490, 494, 532, 566, 637, 665, 910, 931, 980, 988, 1132, 1235, 1274, 1330, 1415, 1729, 1820, 1862, 1981, 2470, 2548, 2660, 2830, 3185, 3458, 3679, 3724, 3962, 4655, 4940, 5377, 5660, 6370, 6916, 7358, 7924, 8645, 9310, 9905, 10754, 12103, 12740, 13867, 14716, 17290, 18395, 18620, 19810, 21508, 24206, 25753, 26885, 27734, 34580, 36790, 37639, 39620, 48412, 51506, 53770, 55468, 60515, 69335, 69901, 73580, 75278, 103012, 107540, 121030, 128765, 138670, 139802, 150556, 180271, 188195, 242060, 257530, 263473, 277340, 279604, 349505, 360542, 376390, 489307, 515060, 526946, 699010, 721084, 752780, 901355, 978614, 1053892, 1317365, 1398020, 1802710, 1957228, 2446535, 2634730, 3425149, 3605420, 4893070, 5269460, 6850298, 9786140, 13700596, 17125745, 34251490, 68502980]

約数ペア:

[(1, 68502980), (2, 34251490), (4, 17125745), (5, 13700596), (7, 9786140), (10, 6850298), (13, 5269460), (14, 4893070), (19, 3605420), (20, 3425149), (26, 2634730), (28, 2446535), (35, 1957228), (38, 1802710), (49, 1398020), (52, 1317365), (65, 1053892), (70, 978614), (76, 901355), (91, 752780), (95, 721084), (98, 699010), (130, 526946), (133, 515060), (140, 489307), (182, 376390), (190, 360542), (196, 349505), (245, 279604), (247, 277340), (260, 263473), (266, 257530), (283, 242060), (364, 188195), (380, 180271), (455, 150556), (490, 139802), (494, 138670), (532, 128765), (566, 121030), (637, 107540), (665, 103012), (910, 75278), (931, 73580), (980, 69901), (988, 69335), (1132, 60515), (1235, 55468), (1274, 53770), (1330, 51506), (1415, 48412), (1729, 39620), (1820, 37639), (1862, 36790), (1981, 34580), (2470, 27734), (2548, 26885), (2660, 25753), (2830, 24206), (3185, 21508), (3458, 19810), (3679, 18620), (3724, 18395), (3962, 17290), (4655, 14716), (4940, 13867), (5377, 12740), (5660, 12103), (6370, 10754), (6916, 9905), (7358, 9310), (7924, 8645)]