28787688

素因数分解:

$2^3\times 3^2\times {\mathrm{47}}^2\times {\mathrm{181}}^1$

素因数の和:287

約数の個数: 72

約数和(自身を含む): 80100930

約数和(自身を除く): 51313242

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 47, 72, 94, 141, 181, 188, 282, 362, 376, 423, 543, 564, 724, 846, 1086, 1128, 1448, 1629, 1692, 2172, 2209, 3258, 3384, 4344, 4418, 6516, 6627, 8507, 8836, 13032, 13254, 17014, 17672, 19881, 25521, 26508, 34028, 39762, 51042, 53016, 68056, 76563, 79524, 102084, 153126, 159048, 204168, 306252, 399829, 612504, 799658, 1199487, 1599316, 2398974, 3198632, 3598461, 4797948, 7196922, 9595896, 14393844, 28787688]

約数ペア:

[(1, 28787688), (2, 14393844), (3, 9595896), (4, 7196922), (6, 4797948), (8, 3598461), (9, 3198632), (12, 2398974), (18, 1599316), (24, 1199487), (36, 799658), (47, 612504), (72, 399829), (94, 306252), (141, 204168), (181, 159048), (188, 153126), (282, 102084), (362, 79524), (376, 76563), (423, 68056), (543, 53016), (564, 51042), (724, 39762), (846, 34028), (1086, 26508), (1128, 25521), (1448, 19881), (1629, 17672), (1692, 17014), (2172, 13254), (2209, 13032), (3258, 8836), (3384, 8507), (4344, 6627), (4418, 6516)]