18020816

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{317}}^1$

素因数の和:372

約数の個数: 80

約数和(自身を含む): 42586560

約数和(自身を除く): 24565744

約数列:

[1, 2, 4, 8, 11, 16, 17, 19, 22, 34, 38, 44, 68, 76, 88, 136, 152, 176, 187, 209, 272, 304, 317, 323, 374, 418, 634, 646, 748, 836, 1268, 1292, 1496, 1672, 2536, 2584, 2992, 3344, 3487, 3553, 5072, 5168, 5389, 6023, 6974, 7106, 10778, 12046, 13948, 14212, 21556, 24092, 27896, 28424, 43112, 48184, 55792, 56848, 59279, 66253, 86224, 96368, 102391, 118558, 132506, 204782, 237116, 265012, 409564, 474232, 530024, 819128, 948464, 1060048, 1126301, 1638256, 2252602, 4505204, 9010408, 18020816]

約数ペア:

[(1, 18020816), (2, 9010408), (4, 4505204), (8, 2252602), (11, 1638256), (16, 1126301), (17, 1060048), (19, 948464), (22, 819128), (34, 530024), (38, 474232), (44, 409564), (68, 265012), (76, 237116), (88, 204782), (136, 132506), (152, 118558), (176, 102391), (187, 96368), (209, 86224), (272, 66253), (304, 59279), (317, 56848), (323, 55792), (374, 48184), (418, 43112), (634, 28424), (646, 27896), (748, 24092), (836, 21556), (1268, 14212), (1292, 13948), (1496, 12046), (1672, 10778), (2536, 7106), (2584, 6974), (2992, 6023), (3344, 5389), (3487, 5168), (3553, 5072)]