87681580

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{277}}^1$

素因数の和:336

約数の個数: 144

約数和(自身を含む): 239591520

約数和(自身を除く): 151909940

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 19, 20, 28, 34, 35, 38, 49, 68, 70, 76, 85, 95, 98, 119, 133, 140, 170, 190, 196, 238, 245, 266, 277, 323, 340, 380, 476, 490, 532, 554, 595, 646, 665, 833, 931, 980, 1108, 1190, 1292, 1330, 1385, 1615, 1666, 1862, 1939, 2261, 2380, 2660, 2770, 3230, 3332, 3724, 3878, 4165, 4522, 4655, 4709, 5263, 5540, 6460, 7756, 8330, 9044, 9310, 9418, 9695, 10526, 11305, 13573, 15827, 16660, 18620, 18836, 19390, 21052, 22610, 23545, 26315, 27146, 31654, 32963, 36841, 38780, 45220, 47090, 52630, 54292, 63308, 65926, 67865, 73682, 79135, 89471, 94180, 105260, 131852, 135730, 147364, 158270, 164815, 178942, 184205, 230741, 257887, 271460, 316540, 329630, 357884, 368410, 447355, 461482, 515774, 626297, 659260, 736820, 894710, 922964, 1031548, 1153705, 1252594, 1289435, 1789420, 2307410, 2505188, 2578870, 3131485, 4384079, 4614820, 5157740, 6262970, 8768158, 12525940, 17536316, 21920395, 43840790, 87681580]

約数ペア:

[(1, 87681580), (2, 43840790), (4, 21920395), (5, 17536316), (7, 12525940), (10, 8768158), (14, 6262970), (17, 5157740), (19, 4614820), (20, 4384079), (28, 3131485), (34, 2578870), (35, 2505188), (38, 2307410), (49, 1789420), (68, 1289435), (70, 1252594), (76, 1153705), (85, 1031548), (95, 922964), (98, 894710), (119, 736820), (133, 659260), (140, 626297), (170, 515774), (190, 461482), (196, 447355), (238, 368410), (245, 357884), (266, 329630), (277, 316540), (323, 271460), (340, 257887), (380, 230741), (476, 184205), (490, 178942), (532, 164815), (554, 158270), (595, 147364), (646, 135730), (665, 131852), (833, 105260), (931, 94180), (980, 89471), (1108, 79135), (1190, 73682), (1292, 67865), (1330, 65926), (1385, 63308), (1615, 54292), (1666, 52630), (1862, 47090), (1939, 45220), (2261, 38780), (2380, 36841), (2660, 32963), (2770, 31654), (3230, 27146), (3332, 26315), (3724, 23545), (3878, 22610), (4165, 21052), (4522, 19390), (4655, 18836), (4709, 18620), (5263, 16660), (5540, 15827), (6460, 13573), (7756, 11305), (8330, 10526), (9044, 9695), (9310, 9418)]