81417060

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1$

素因数の和:282

約数の個数: 144

約数和(自身を含む): 258113856

約数和(自身を除く): 176696796

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 67, 86, 90, 129, 134, 157, 172, 180, 201, 215, 258, 268, 314, 335, 387, 402, 430, 471, 516, 603, 628, 645, 670, 774, 785, 804, 860, 942, 1005, 1206, 1290, 1340, 1413, 1548, 1570, 1884, 1935, 2010, 2355, 2412, 2580, 2826, 2881, 3015, 3140, 3870, 4020, 4710, 5652, 5762, 6030, 6751, 7065, 7740, 8643, 9420, 10519, 11524, 12060, 13502, 14130, 14405, 17286, 20253, 21038, 25929, 27004, 28260, 28810, 31557, 33755, 34572, 40506, 42076, 43215, 51858, 52595, 57620, 60759, 63114, 67510, 81012, 86430, 94671, 101265, 103716, 105190, 121518, 126228, 129645, 135020, 157785, 172860, 189342, 202530, 210380, 243036, 259290, 303795, 315570, 378684, 405060, 452317, 473355, 518580, 607590, 631140, 904634, 946710, 1215180, 1356951, 1809268, 1893420, 2261585, 2713902, 4070853, 4523170, 5427804, 6784755, 8141706, 9046340, 13569510, 16283412, 20354265, 27139020, 40708530, 81417060]

約数ペア:

[(1, 81417060), (2, 40708530), (3, 27139020), (4, 20354265), (5, 16283412), (6, 13569510), (9, 9046340), (10, 8141706), (12, 6784755), (15, 5427804), (18, 4523170), (20, 4070853), (30, 2713902), (36, 2261585), (43, 1893420), (45, 1809268), (60, 1356951), (67, 1215180), (86, 946710), (90, 904634), (129, 631140), (134, 607590), (157, 518580), (172, 473355), (180, 452317), (201, 405060), (215, 378684), (258, 315570), (268, 303795), (314, 259290), (335, 243036), (387, 210380), (402, 202530), (430, 189342), (471, 172860), (516, 157785), (603, 135020), (628, 129645), (645, 126228), (670, 121518), (774, 105190), (785, 103716), (804, 101265), (860, 94671), (942, 86430), (1005, 81012), (1206, 67510), (1290, 63114), (1340, 60759), (1413, 57620), (1548, 52595), (1570, 51858), (1884, 43215), (1935, 42076), (2010, 40506), (2355, 34572), (2412, 33755), (2580, 31557), (2826, 28810), (2881, 28260), (3015, 27004), (3140, 25929), (3870, 21038), (4020, 20253), (4710, 17286), (5652, 14405), (5762, 14130), (6030, 13502), (6751, 12060), (7065, 11524), (7740, 10519), (8643, 9420)]