178178728

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^2\times {\mathrm{67}}^1\times {\mathrm{281}}^1$

素因数の和:387

約数の個数: 96

約数和(自身を含む): 421104960

約数和(自身を除く): 242926232

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 67, 91, 104, 134, 169, 182, 268, 281, 338, 364, 469, 536, 562, 676, 728, 871, 938, 1124, 1183, 1352, 1742, 1876, 1967, 2248, 2366, 3484, 3653, 3752, 3934, 4732, 6097, 6968, 7306, 7868, 9464, 11323, 12194, 14612, 15736, 18827, 22646, 24388, 25571, 29224, 37654, 45292, 47489, 48776, 51142, 75308, 79261, 90584, 94978, 102284, 131789, 150616, 158522, 189956, 204568, 244751, 263578, 317044, 332423, 379912, 489502, 527156, 634088, 664846, 979004, 1054312, 1329692, 1713257, 1958008, 2659384, 3181763, 3426514, 6363526, 6853028, 12727052, 13706056, 22272341, 25454104, 44544682, 89089364, 178178728]

約数ペア:

[(1, 178178728), (2, 89089364), (4, 44544682), (7, 25454104), (8, 22272341), (13, 13706056), (14, 12727052), (26, 6853028), (28, 6363526), (52, 3426514), (56, 3181763), (67, 2659384), (91, 1958008), (104, 1713257), (134, 1329692), (169, 1054312), (182, 979004), (268, 664846), (281, 634088), (338, 527156), (364, 489502), (469, 379912), (536, 332423), (562, 317044), (676, 263578), (728, 244751), (871, 204568), (938, 189956), (1124, 158522), (1183, 150616), (1352, 131789), (1742, 102284), (1876, 94978), (1967, 90584), (2248, 79261), (2366, 75308), (3484, 51142), (3653, 48776), (3752, 47489), (3934, 45292), (4732, 37654), (6097, 29224), (6968, 25571), (7306, 24388), (7868, 22646), (9464, 18827), (11323, 15736), (12194, 14612)]