257761998

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{401}}^1$

素因数の和:530

約数の個数: 96

約数和(自身を含む): 626869152

約数和(自身を除く): 369107154

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 41, 67, 78, 82, 117, 123, 134, 201, 234, 246, 369, 401, 402, 533, 603, 738, 802, 871, 1066, 1203, 1206, 1599, 1742, 2406, 2613, 2747, 3198, 3609, 4797, 5213, 5226, 5494, 7218, 7839, 8241, 9594, 10426, 15639, 15678, 16441, 16482, 24723, 26867, 31278, 32882, 35711, 46917, 49323, 49446, 53734, 71422, 80601, 93834, 98646, 107133, 147969, 161202, 213733, 214266, 241803, 295938, 321399, 349271, 427466, 483606, 641199, 642798, 698542, 1047813, 1101547, 1282398, 1923597, 2095626, 2203094, 3143439, 3304641, 3847194, 6286878, 6609282, 9913923, 14320111, 19827846, 28640222, 42960333, 85920666, 128880999, 257761998]

約数ペア:

[(1, 257761998), (2, 128880999), (3, 85920666), (6, 42960333), (9, 28640222), (13, 19827846), (18, 14320111), (26, 9913923), (39, 6609282), (41, 6286878), (67, 3847194), (78, 3304641), (82, 3143439), (117, 2203094), (123, 2095626), (134, 1923597), (201, 1282398), (234, 1101547), (246, 1047813), (369, 698542), (401, 642798), (402, 641199), (533, 483606), (603, 427466), (738, 349271), (802, 321399), (871, 295938), (1066, 241803), (1203, 214266), (1206, 213733), (1599, 161202), (1742, 147969), (2406, 107133), (2613, 98646), (2747, 93834), (3198, 80601), (3609, 71422), (4797, 53734), (5213, 49446), (5226, 49323), (5494, 46917), (7218, 35711), (7839, 32882), (8241, 31278), (9594, 26867), (10426, 24723), (15639, 16482), (15678, 16441)]