81246660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^2\times {\mathrm{31}}^1$

素因数の和:103

約数の個数: 216

約数和(自身を含む): 272418048

約数和(自身を除く): 191171388

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 19, 20, 22, 30, 31, 33, 38, 44, 55, 57, 60, 62, 66, 76, 93, 95, 110, 114, 121, 124, 132, 155, 165, 186, 190, 209, 220, 228, 242, 285, 310, 330, 341, 361, 363, 372, 380, 418, 465, 484, 570, 589, 605, 620, 627, 660, 682, 722, 726, 836, 930, 1023, 1045, 1083, 1140, 1178, 1210, 1254, 1364, 1444, 1452, 1705, 1767, 1805, 1815, 1860, 2046, 2090, 2166, 2299, 2356, 2420, 2508, 2945, 3135, 3410, 3534, 3610, 3630, 3751, 3971, 4092, 4180, 4332, 4598, 5115, 5415, 5890, 6270, 6479, 6820, 6897, 7068, 7220, 7260, 7502, 7942, 8835, 9196, 10230, 10830, 11191, 11253, 11495, 11780, 11913, 12540, 12958, 13794, 15004, 15884, 17670, 18755, 19437, 19855, 20460, 21660, 22382, 22506, 22990, 23826, 25916, 27588, 32395, 33573, 34485, 35340, 37510, 38874, 39710, 43681, 44764, 45012, 45980, 47652, 55955, 56265, 59565, 64790, 67146, 68970, 71269, 75020, 77748, 79420, 87362, 97185, 111910, 112530, 119130, 123101, 129580, 131043, 134292, 137940, 142538, 167865, 174724, 194370, 213807, 218405, 223820, 225060, 238260, 246202, 262086, 285076, 335730, 356345, 369303, 388740, 427614, 436810, 492404, 524172, 615505, 655215, 671460, 712690, 738606, 855228, 873620, 1069035, 1231010, 1310430, 1354111, 1425380, 1477212, 1846515, 2138070, 2462020, 2620860, 2708222, 3693030, 4062333, 4276140, 5416444, 6770555, 7386060, 8124666, 13541110, 16249332, 20311665, 27082220, 40623330, 81246660]

約数ペア:

[(1, 81246660), (2, 40623330), (3, 27082220), (4, 20311665), (5, 16249332), (6, 13541110), (10, 8124666), (11, 7386060), (12, 6770555), (15, 5416444), (19, 4276140), (20, 4062333), (22, 3693030), (30, 2708222), (31, 2620860), (33, 2462020), (38, 2138070), (44, 1846515), (55, 1477212), (57, 1425380), (60, 1354111), (62, 1310430), (66, 1231010), (76, 1069035), (93, 873620), (95, 855228), (110, 738606), (114, 712690), (121, 671460), (124, 655215), (132, 615505), (155, 524172), (165, 492404), (186, 436810), (190, 427614), (209, 388740), (220, 369303), (228, 356345), (242, 335730), (285, 285076), (310, 262086), (330, 246202), (341, 238260), (361, 225060), (363, 223820), (372, 218405), (380, 213807), (418, 194370), (465, 174724), (484, 167865), (570, 142538), (589, 137940), (605, 134292), (620, 131043), (627, 129580), (660, 123101), (682, 119130), (722, 112530), (726, 111910), (836, 97185), (930, 87362), (1023, 79420), (1045, 77748), (1083, 75020), (1140, 71269), (1178, 68970), (1210, 67146), (1254, 64790), (1364, 59565), (1444, 56265), (1452, 55955), (1705, 47652), (1767, 45980), (1805, 45012), (1815, 44764), (1860, 43681), (2046, 39710), (2090, 38874), (2166, 37510), (2299, 35340), (2356, 34485), (2420, 33573), (2508, 32395), (2945, 27588), (3135, 25916), (3410, 23826), (3534, 22990), (3610, 22506), (3630, 22382), (3751, 21660), (3971, 20460), (4092, 19855), (4180, 19437), (4332, 18755), (4598, 17670), (5115, 15884), (5415, 15004), (5890, 13794), (6270, 12958), (6479, 12540), (6820, 11913), (6897, 11780), (7068, 11495), (7220, 11253), (7260, 11191), (7502, 10830), (7942, 10230), (8835, 9196)]