648448948

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1$

素因数の和:246

約数の個数: 144

約数和(自身を含む): 1480066560

約数和(自身を除く): 831617612

約数列:

[1, 2, 4, 7, 14, 19, 28, 31, 38, 41, 49, 62, 76, 82, 98, 124, 133, 137, 164, 196, 217, 266, 274, 287, 434, 532, 548, 574, 589, 779, 868, 931, 959, 1148, 1178, 1271, 1519, 1558, 1862, 1918, 2009, 2356, 2542, 2603, 3038, 3116, 3724, 3836, 4018, 4123, 4247, 5084, 5206, 5453, 5617, 6076, 6713, 8036, 8246, 8494, 8897, 10412, 10906, 11234, 13426, 16492, 16988, 17794, 18221, 21812, 22468, 24149, 26852, 28861, 29729, 35588, 36442, 38171, 39319, 48298, 57722, 59458, 62279, 72884, 76342, 78638, 80693, 96596, 106723, 115444, 118916, 124558, 127547, 152684, 157276, 161386, 169043, 174127, 208103, 213446, 249116, 255094, 275233, 322772, 338086, 348254, 416206, 426892, 510188, 550466, 564851, 676172, 696508, 747061, 832412, 1100932, 1129702, 1183301, 1218889, 1494122, 2259404, 2366602, 2437778, 2988244, 3308413, 3953957, 4733204, 4875556, 5229427, 6616826, 7907914, 8532223, 10458854, 13233652, 15815828, 17064446, 20917708, 23158891, 34128892, 46317782, 92635564, 162112237, 324224474, 648448948]

約数ペア:

[(1, 648448948), (2, 324224474), (4, 162112237), (7, 92635564), (14, 46317782), (19, 34128892), (28, 23158891), (31, 20917708), (38, 17064446), (41, 15815828), (49, 13233652), (62, 10458854), (76, 8532223), (82, 7907914), (98, 6616826), (124, 5229427), (133, 4875556), (137, 4733204), (164, 3953957), (196, 3308413), (217, 2988244), (266, 2437778), (274, 2366602), (287, 2259404), (434, 1494122), (532, 1218889), (548, 1183301), (574, 1129702), (589, 1100932), (779, 832412), (868, 747061), (931, 696508), (959, 676172), (1148, 564851), (1178, 550466), (1271, 510188), (1519, 426892), (1558, 416206), (1862, 348254), (1918, 338086), (2009, 322772), (2356, 275233), (2542, 255094), (2603, 249116), (3038, 213446), (3116, 208103), (3724, 174127), (3836, 169043), (4018, 161386), (4123, 157276), (4247, 152684), (5084, 127547), (5206, 124558), (5453, 118916), (5617, 115444), (6076, 106723), (6713, 96596), (8036, 80693), (8246, 78638), (8494, 76342), (8897, 72884), (10412, 62279), (10906, 59458), (11234, 57722), (13426, 48298), (16492, 39319), (16988, 38171), (17794, 36442), (18221, 35588), (21812, 29729), (22468, 28861), (24149, 26852)]