78478890

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{197}}^1\times {\mathrm{271}}^1$

素因数の和:492

約数の個数: 96

約数和(自身を含む): 221025024

約数和(自身を除く): 142546134

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 197, 210, 245, 271, 294, 394, 490, 542, 591, 735, 813, 985, 1182, 1355, 1379, 1470, 1626, 1897, 1970, 2710, 2758, 2955, 3794, 4065, 4137, 5691, 5910, 6895, 8130, 8274, 9485, 9653, 11382, 13279, 13790, 18970, 19306, 20685, 26558, 28455, 28959, 39837, 41370, 48265, 53387, 56910, 57918, 66395, 79674, 96530, 106774, 132790, 144795, 160161, 199185, 266935, 289590, 320322, 373709, 398370, 533870, 747418, 800805, 1121127, 1601610, 1868545, 2242254, 2615963, 3737090, 5231926, 5605635, 7847889, 11211270, 13079815, 15695778, 26159630, 39239445, 78478890]

約数ペア:

[(1, 78478890), (2, 39239445), (3, 26159630), (5, 15695778), (6, 13079815), (7, 11211270), (10, 7847889), (14, 5605635), (15, 5231926), (21, 3737090), (30, 2615963), (35, 2242254), (42, 1868545), (49, 1601610), (70, 1121127), (98, 800805), (105, 747418), (147, 533870), (197, 398370), (210, 373709), (245, 320322), (271, 289590), (294, 266935), (394, 199185), (490, 160161), (542, 144795), (591, 132790), (735, 106774), (813, 96530), (985, 79674), (1182, 66395), (1355, 57918), (1379, 56910), (1470, 53387), (1626, 48265), (1897, 41370), (1970, 39837), (2710, 28959), (2758, 28455), (2955, 26558), (3794, 20685), (4065, 19306), (4137, 18970), (5691, 13790), (5910, 13279), (6895, 11382), (8130, 9653), (8274, 9485)]