28707336

素因数分解:

$2^3\times 3^2\times 7^2\times {\mathrm{79}}^1\times {\mathrm{103}}^1$

素因数の和:208

約数の個数: 144

約数和(自身を含む): 92476800

約数和(自身を除く): 63769464

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 49, 56, 63, 72, 79, 84, 98, 103, 126, 147, 158, 168, 196, 206, 237, 252, 294, 309, 316, 392, 412, 441, 474, 504, 553, 588, 618, 632, 711, 721, 824, 882, 927, 948, 1106, 1176, 1236, 1422, 1442, 1659, 1764, 1854, 1896, 2163, 2212, 2472, 2844, 2884, 3318, 3528, 3708, 3871, 4326, 4424, 4977, 5047, 5688, 5768, 6489, 6636, 7416, 7742, 8137, 8652, 9954, 10094, 11613, 12978, 13272, 15141, 15484, 16274, 17304, 19908, 20188, 23226, 24411, 25956, 30282, 30968, 32548, 34839, 39816, 40376, 45423, 46452, 48822, 51912, 56959, 60564, 65096, 69678, 73233, 90846, 92904, 97644, 113918, 121128, 139356, 146466, 170877, 181692, 195288, 227836, 278712, 292932, 341754, 363384, 398713, 455672, 512631, 585864, 683508, 797426, 1025262, 1196139, 1367016, 1594852, 2050524, 2392278, 3189704, 3588417, 4101048, 4784556, 7176834, 9569112, 14353668, 28707336]

約数ペア:

[(1, 28707336), (2, 14353668), (3, 9569112), (4, 7176834), (6, 4784556), (7, 4101048), (8, 3588417), (9, 3189704), (12, 2392278), (14, 2050524), (18, 1594852), (21, 1367016), (24, 1196139), (28, 1025262), (36, 797426), (42, 683508), (49, 585864), (56, 512631), (63, 455672), (72, 398713), (79, 363384), (84, 341754), (98, 292932), (103, 278712), (126, 227836), (147, 195288), (158, 181692), (168, 170877), (196, 146466), (206, 139356), (237, 121128), (252, 113918), (294, 97644), (309, 92904), (316, 90846), (392, 73233), (412, 69678), (441, 65096), (474, 60564), (504, 56959), (553, 51912), (588, 48822), (618, 46452), (632, 45423), (711, 40376), (721, 39816), (824, 34839), (882, 32548), (927, 30968), (948, 30282), (1106, 25956), (1176, 24411), (1236, 23226), (1422, 20188), (1442, 19908), (1659, 17304), (1764, 16274), (1854, 15484), (1896, 15141), (2163, 13272), (2212, 12978), (2472, 11613), (2844, 10094), (2884, 9954), (3318, 8652), (3528, 8137), (3708, 7742), (3871, 7416), (4326, 6636), (4424, 6489), (4977, 5768), (5047, 5688)]