218992708

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{811}}^1$

素因数の和:881

約数の個数: 72

約数和(自身を含む): 467770464

約数和(自身を除く): 248777756

約数列:

[1, 2, 4, 11, 17, 19, 22, 34, 38, 44, 68, 76, 187, 209, 323, 361, 374, 418, 646, 722, 748, 811, 836, 1292, 1444, 1622, 3244, 3553, 3971, 6137, 7106, 7942, 8921, 12274, 13787, 14212, 15409, 15884, 17842, 24548, 27574, 30818, 35684, 55148, 61636, 67507, 135014, 151657, 169499, 261953, 270028, 292771, 303314, 338998, 523906, 585542, 606628, 677996, 1047812, 1171084, 2881483, 3220481, 4977107, 5762966, 6440962, 9954214, 11525932, 12881924, 19908428, 54748177, 109496354, 218992708]

約数ペア:

[(1, 218992708), (2, 109496354), (4, 54748177), (11, 19908428), (17, 12881924), (19, 11525932), (22, 9954214), (34, 6440962), (38, 5762966), (44, 4977107), (68, 3220481), (76, 2881483), (187, 1171084), (209, 1047812), (323, 677996), (361, 606628), (374, 585542), (418, 523906), (646, 338998), (722, 303314), (748, 292771), (811, 270028), (836, 261953), (1292, 169499), (1444, 151657), (1622, 135014), (3244, 67507), (3553, 61636), (3971, 55148), (6137, 35684), (7106, 30818), (7942, 27574), (8921, 24548), (12274, 17842), (13787, 15884), (14212, 15409)]