647936212

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{241}}^1$

素因数の和:342

約数の個数: 144

約数和(自身を含む): 1529478720

約数和(自身を除く): 881542508

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 29, 43, 44, 49, 58, 77, 86, 98, 116, 154, 172, 196, 203, 241, 301, 308, 319, 406, 473, 482, 539, 602, 638, 812, 946, 964, 1078, 1204, 1247, 1276, 1421, 1687, 1892, 2107, 2156, 2233, 2494, 2651, 2842, 3311, 3374, 4214, 4466, 4988, 5302, 5684, 6622, 6748, 6989, 8428, 8729, 8932, 10363, 10604, 11809, 13244, 13717, 13978, 15631, 17458, 18557, 20726, 23177, 23618, 27434, 27956, 31262, 34916, 37114, 41452, 46354, 47236, 48923, 54868, 61103, 62524, 72541, 74228, 76879, 92708, 96019, 97846, 113993, 122206, 129899, 145082, 153758, 192038, 195692, 227986, 244412, 259798, 290164, 300527, 307516, 342461, 384076, 455972, 507787, 519596, 538153, 601054, 672133, 684922, 797951, 1015574, 1076306, 1202108, 1344266, 1369844, 1595902, 2031148, 2103689, 2152612, 2688532, 3191804, 3305797, 3767071, 4207378, 5585657, 6611594, 7534142, 8414756, 11171314, 13223188, 14725823, 15068284, 22342628, 23140579, 29451646, 46281158, 58903292, 92562316, 161984053, 323968106, 647936212]

約数ペア:

[(1, 647936212), (2, 323968106), (4, 161984053), (7, 92562316), (11, 58903292), (14, 46281158), (22, 29451646), (28, 23140579), (29, 22342628), (43, 15068284), (44, 14725823), (49, 13223188), (58, 11171314), (77, 8414756), (86, 7534142), (98, 6611594), (116, 5585657), (154, 4207378), (172, 3767071), (196, 3305797), (203, 3191804), (241, 2688532), (301, 2152612), (308, 2103689), (319, 2031148), (406, 1595902), (473, 1369844), (482, 1344266), (539, 1202108), (602, 1076306), (638, 1015574), (812, 797951), (946, 684922), (964, 672133), (1078, 601054), (1204, 538153), (1247, 519596), (1276, 507787), (1421, 455972), (1687, 384076), (1892, 342461), (2107, 307516), (2156, 300527), (2233, 290164), (2494, 259798), (2651, 244412), (2842, 227986), (3311, 195692), (3374, 192038), (4214, 153758), (4466, 145082), (4988, 129899), (5302, 122206), (5684, 113993), (6622, 97846), (6748, 96019), (6989, 92708), (8428, 76879), (8729, 74228), (8932, 72541), (10363, 62524), (10604, 61103), (11809, 54868), (13244, 48923), (13717, 47236), (13978, 46354), (15631, 41452), (17458, 37114), (18557, 34916), (20726, 31262), (23177, 27956), (23618, 27434)]