31445988

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{61}}^1$

素因数の和:130

約数の個数: 144

約数和(自身を含む): 95243904

約数和(自身を除く): 63797916

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 17, 19, 21, 28, 34, 38, 42, 51, 57, 61, 68, 76, 84, 102, 114, 119, 122, 133, 183, 204, 228, 238, 244, 266, 323, 357, 361, 366, 399, 427, 476, 532, 646, 714, 722, 732, 798, 854, 969, 1037, 1083, 1159, 1281, 1292, 1428, 1444, 1596, 1708, 1938, 2074, 2166, 2261, 2318, 2527, 2562, 3111, 3477, 3876, 4148, 4332, 4522, 4636, 5054, 5124, 6137, 6222, 6783, 6954, 7259, 7581, 8113, 9044, 10108, 12274, 12444, 13566, 13908, 14518, 15162, 16226, 18411, 19703, 21777, 22021, 24339, 24548, 27132, 29036, 30324, 32452, 36822, 39406, 42959, 43554, 44042, 48678, 59109, 66063, 73644, 78812, 85918, 87108, 88084, 97356, 118218, 128877, 132126, 137921, 154147, 171836, 236436, 257754, 264252, 275842, 308294, 374357, 413763, 462441, 515508, 551684, 616588, 748714, 827526, 924882, 1123071, 1497428, 1655052, 1849764, 2246142, 2620499, 4492284, 5240998, 7861497, 10481996, 15722994, 31445988]

約数ペア:

[(1, 31445988), (2, 15722994), (3, 10481996), (4, 7861497), (6, 5240998), (7, 4492284), (12, 2620499), (14, 2246142), (17, 1849764), (19, 1655052), (21, 1497428), (28, 1123071), (34, 924882), (38, 827526), (42, 748714), (51, 616588), (57, 551684), (61, 515508), (68, 462441), (76, 413763), (84, 374357), (102, 308294), (114, 275842), (119, 264252), (122, 257754), (133, 236436), (183, 171836), (204, 154147), (228, 137921), (238, 132126), (244, 128877), (266, 118218), (323, 97356), (357, 88084), (361, 87108), (366, 85918), (399, 78812), (427, 73644), (476, 66063), (532, 59109), (646, 48678), (714, 44042), (722, 43554), (732, 42959), (798, 39406), (854, 36822), (969, 32452), (1037, 30324), (1083, 29036), (1159, 27132), (1281, 24548), (1292, 24339), (1428, 22021), (1444, 21777), (1596, 19703), (1708, 18411), (1938, 16226), (2074, 15162), (2166, 14518), (2261, 13908), (2318, 13566), (2527, 12444), (2562, 12274), (3111, 10108), (3477, 9044), (3876, 8113), (4148, 7581), (4332, 7259), (4522, 6954), (4636, 6783), (5054, 6222), (5124, 6137)]