68018860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{281}}^1$

素因数の和:336

約数の個数: 144

約数和(自身を含む): 189030240

約数和(自身を除く): 121011380

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, 281, 364, 380, 455, 490, 494, 532, 562, 637, 665, 910, 931, 980, 988, 1124, 1235, 1274, 1330, 1405, 1729, 1820, 1862, 1967, 2470, 2548, 2660, 2810, 3185, 3458, 3653, 3724, 3934, 4655, 4940, 5339, 5620, 6370, 6916, 7306, 7868, 8645, 9310, 9835, 10678, 12103, 12740, 13769, 14612, 17290, 18265, 18620, 19670, 21356, 24206, 25571, 26695, 27538, 34580, 36530, 37373, 39340, 48412, 51142, 53390, 55076, 60515, 68845, 69407, 73060, 74746, 102284, 106780, 121030, 127855, 137690, 138814, 149492, 178997, 186865, 242060, 255710, 261611, 275380, 277628, 347035, 357994, 373730, 485849, 511420, 523222, 694070, 715988, 747460, 894985, 971698, 1046444, 1308055, 1388140, 1789970, 1943396, 2429245, 2616110, 3400943, 3579940, 4858490, 5232220, 6801886, 9716980, 13603772, 17004715, 34009430, 68018860]

約数ペア:

[(1, 68018860), (2, 34009430), (4, 17004715), (5, 13603772), (7, 9716980), (10, 6801886), (13, 5232220), (14, 4858490), (19, 3579940), (20, 3400943), (26, 2616110), (28, 2429245), (35, 1943396), (38, 1789970), (49, 1388140), (52, 1308055), (65, 1046444), (70, 971698), (76, 894985), (91, 747460), (95, 715988), (98, 694070), (130, 523222), (133, 511420), (140, 485849), (182, 373730), (190, 357994), (196, 347035), (245, 277628), (247, 275380), (260, 261611), (266, 255710), (281, 242060), (364, 186865), (380, 178997), (455, 149492), (490, 138814), (494, 137690), (532, 127855), (562, 121030), (637, 106780), (665, 102284), (910, 74746), (931, 73060), (980, 69407), (988, 68845), (1124, 60515), (1235, 55076), (1274, 53390), (1330, 51142), (1405, 48412), (1729, 39340), (1820, 37373), (1862, 36530), (1967, 34580), (2470, 27538), (2548, 26695), (2660, 25571), (2810, 24206), (3185, 21356), (3458, 19670), (3653, 18620), (3724, 18265), (3934, 17290), (4655, 14612), (4940, 13769), (5339, 12740), (5620, 12103), (6370, 10678), (6916, 9835), (7306, 9310), (7868, 8645)]