81519830

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1$

素因数の和:190

約数の個数: 96

約数和(自身を含む): 180395424

約数和(自身を除く): 98875594

約数列:

[1, 2, 5, 7, 10, 14, 35, 43, 49, 53, 70, 73, 86, 98, 106, 146, 215, 245, 265, 301, 365, 371, 430, 490, 511, 530, 602, 730, 742, 1022, 1505, 1855, 2107, 2279, 2555, 2597, 3010, 3139, 3577, 3710, 3869, 4214, 4558, 5110, 5194, 6278, 7154, 7738, 10535, 11395, 12985, 15695, 15953, 17885, 19345, 21070, 21973, 22790, 25970, 27083, 31390, 31906, 35770, 38690, 43946, 54166, 79765, 109865, 111671, 135415, 153811, 159530, 166367, 189581, 219730, 223342, 270830, 307622, 332734, 379162, 558355, 769055, 831835, 947905, 1116710, 1164569, 1538110, 1663670, 1895810, 2329138, 5822845, 8151983, 11645690, 16303966, 40759915, 81519830]

約数ペア:

[(1, 81519830), (2, 40759915), (5, 16303966), (7, 11645690), (10, 8151983), (14, 5822845), (35, 2329138), (43, 1895810), (49, 1663670), (53, 1538110), (70, 1164569), (73, 1116710), (86, 947905), (98, 831835), (106, 769055), (146, 558355), (215, 379162), (245, 332734), (265, 307622), (301, 270830), (365, 223342), (371, 219730), (430, 189581), (490, 166367), (511, 159530), (530, 153811), (602, 135415), (730, 111671), (742, 109865), (1022, 79765), (1505, 54166), (1855, 43946), (2107, 38690), (2279, 35770), (2555, 31906), (2597, 31390), (3010, 27083), (3139, 25970), (3577, 22790), (3710, 21973), (3869, 21070), (4214, 19345), (4558, 17885), (5110, 15953), (5194, 15695), (6278, 12985), (7154, 11395), (7738, 10535)]