656463440

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{1753}}^1$

素因数の和:1948

約数の個数: 80

約数和(自身を含む): 1586850816

約数和(自身を除く): 930387376

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 151, 155, 248, 302, 310, 496, 604, 620, 755, 1208, 1240, 1510, 1753, 2416, 2480, 3020, 3506, 4681, 6040, 7012, 8765, 9362, 12080, 14024, 17530, 18724, 23405, 28048, 35060, 37448, 46810, 54343, 70120, 74896, 93620, 108686, 140240, 187240, 217372, 264703, 271715, 374480, 434744, 529406, 543430, 869488, 1058812, 1086860, 1323515, 2117624, 2173720, 2647030, 4235248, 4347440, 5294060, 8205793, 10588120, 16411586, 21176240, 32823172, 41028965, 65646344, 82057930, 131292688, 164115860, 328231720, 656463440]

約数ペア:

[(1, 656463440), (2, 328231720), (4, 164115860), (5, 131292688), (8, 82057930), (10, 65646344), (16, 41028965), (20, 32823172), (31, 21176240), (40, 16411586), (62, 10588120), (80, 8205793), (124, 5294060), (151, 4347440), (155, 4235248), (248, 2647030), (302, 2173720), (310, 2117624), (496, 1323515), (604, 1086860), (620, 1058812), (755, 869488), (1208, 543430), (1240, 529406), (1510, 434744), (1753, 374480), (2416, 271715), (2480, 264703), (3020, 217372), (3506, 187240), (4681, 140240), (6040, 108686), (7012, 93620), (8765, 74896), (9362, 70120), (12080, 54343), (14024, 46810), (17530, 37448), (18724, 35060), (23405, 28048)]