81147708

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:192

約数の個数: 144

約数和(自身を含む): 230630400

約数和(自身を除く): 149482692

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 31, 36, 38, 43, 57, 62, 76, 86, 89, 93, 114, 124, 129, 171, 172, 178, 186, 228, 258, 267, 279, 342, 356, 372, 387, 516, 534, 558, 589, 684, 774, 801, 817, 1068, 1116, 1178, 1333, 1548, 1602, 1634, 1691, 1767, 2356, 2451, 2666, 2759, 3204, 3268, 3382, 3534, 3827, 3999, 4902, 5073, 5301, 5332, 5518, 6764, 7068, 7353, 7654, 7998, 8277, 9804, 10146, 10602, 11036, 11481, 11997, 14706, 15219, 15308, 15996, 16554, 20292, 21204, 22962, 23994, 24831, 25327, 29412, 30438, 33108, 34443, 45924, 47988, 49662, 50654, 52421, 60876, 68886, 72713, 75981, 99324, 101308, 104842, 118637, 137772, 145426, 151962, 157263, 209684, 218139, 227943, 237274, 290852, 303924, 314526, 355911, 436278, 455886, 471789, 474548, 629052, 654417, 711822, 872556, 911772, 943578, 1067733, 1308834, 1423644, 1887156, 2135466, 2254103, 2617668, 4270932, 4508206, 6762309, 9016412, 13524618, 20286927, 27049236, 40573854, 81147708]

約数ペア:

[(1, 81147708), (2, 40573854), (3, 27049236), (4, 20286927), (6, 13524618), (9, 9016412), (12, 6762309), (18, 4508206), (19, 4270932), (31, 2617668), (36, 2254103), (38, 2135466), (43, 1887156), (57, 1423644), (62, 1308834), (76, 1067733), (86, 943578), (89, 911772), (93, 872556), (114, 711822), (124, 654417), (129, 629052), (171, 474548), (172, 471789), (178, 455886), (186, 436278), (228, 355911), (258, 314526), (267, 303924), (279, 290852), (342, 237274), (356, 227943), (372, 218139), (387, 209684), (516, 157263), (534, 151962), (558, 145426), (589, 137772), (684, 118637), (774, 104842), (801, 101308), (817, 99324), (1068, 75981), (1116, 72713), (1178, 68886), (1333, 60876), (1548, 52421), (1602, 50654), (1634, 49662), (1691, 47988), (1767, 45924), (2356, 34443), (2451, 33108), (2666, 30438), (2759, 29412), (3204, 25327), (3268, 24831), (3382, 23994), (3534, 22962), (3827, 21204), (3999, 20292), (4902, 16554), (5073, 15996), (5301, 15308), (5332, 15219), (5518, 14706), (6764, 11997), (7068, 11481), (7353, 11036), (7654, 10602), (7998, 10146), (8277, 9804)]