647029458

素因数分解:

$2^1\times 3^4\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{6781}}^1$

素因数の和:6845

約数の個数: 80

約数和(自身を含む): 1575594240

約数和(自身を除く): 928564782

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 31, 38, 54, 57, 62, 81, 93, 114, 162, 171, 186, 279, 342, 513, 558, 589, 837, 1026, 1178, 1539, 1674, 1767, 2511, 3078, 3534, 5022, 5301, 6781, 10602, 13562, 15903, 20343, 31806, 40686, 47709, 61029, 95418, 122058, 128839, 183087, 210211, 257678, 366174, 386517, 420422, 549261, 630633, 773034, 1098522, 1159551, 1261266, 1891899, 2319102, 3478653, 3783798, 3994009, 5675697, 6957306, 7988018, 10435959, 11351394, 11982027, 17027091, 20871918, 23964054, 34054182, 35946081, 71892162, 107838243, 215676486, 323514729, 647029458]

約数ペア:

[(1, 647029458), (2, 323514729), (3, 215676486), (6, 107838243), (9, 71892162), (18, 35946081), (19, 34054182), (27, 23964054), (31, 20871918), (38, 17027091), (54, 11982027), (57, 11351394), (62, 10435959), (81, 7988018), (93, 6957306), (114, 5675697), (162, 3994009), (171, 3783798), (186, 3478653), (279, 2319102), (342, 1891899), (513, 1261266), (558, 1159551), (589, 1098522), (837, 773034), (1026, 630633), (1178, 549261), (1539, 420422), (1674, 386517), (1767, 366174), (2511, 257678), (3078, 210211), (3534, 183087), (5022, 128839), (5301, 122058), (6781, 95418), (10602, 61029), (13562, 47709), (15903, 40686), (20343, 31806)]