19680958096

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{401}}^1\times {\mathrm{1867}}^1$

素因数の和:2360

約数の個数: 80

約数和(自身を含む): 40226139648

約数和(自身を除く): 20545181552

約数列:

[1, 2, 4, 8, 16, 31, 53, 62, 106, 124, 212, 248, 401, 424, 496, 802, 848, 1604, 1643, 1867, 3208, 3286, 3734, 6416, 6572, 7468, 12431, 13144, 14936, 21253, 24862, 26288, 29872, 42506, 49724, 57877, 85012, 98951, 99448, 115754, 170024, 197902, 198896, 231508, 340048, 395804, 463016, 658843, 748667, 791608, 926032, 1317686, 1497334, 1583216, 2635372, 2994668, 3067481, 5270744, 5989336, 6134962, 10541488, 11978672, 12269924, 23208677, 24539848, 39679351, 46417354, 49079696, 79358702, 92834708, 158717404, 185669416, 317434808, 371338832, 634869616, 1230059881, 2460119762, 4920239524, 9840479048, 19680958096]

約数ペア:

[(1, 19680958096), (2, 9840479048), (4, 4920239524), (8, 2460119762), (16, 1230059881), (31, 634869616), (53, 371338832), (62, 317434808), (106, 185669416), (124, 158717404), (212, 92834708), (248, 79358702), (401, 49079696), (424, 46417354), (496, 39679351), (802, 24539848), (848, 23208677), (1604, 12269924), (1643, 11978672), (1867, 10541488), (3208, 6134962), (3286, 5989336), (3734, 5270744), (6416, 3067481), (6572, 2994668), (7468, 2635372), (12431, 1583216), (13144, 1497334), (14936, 1317686), (21253, 926032), (24862, 791608), (26288, 748667), (29872, 658843), (42506, 463016), (49724, 395804), (57877, 340048), (85012, 231508), (98951, 198896), (99448, 197902), (115754, 170024)]