161020380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{449}}^1$

素因数の和:643

約数の個数: 96

約数和(自身を含む): 465696000

約数和(自身を除く): 304675620

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 139, 172, 215, 258, 278, 417, 430, 449, 516, 556, 645, 695, 834, 860, 898, 1290, 1347, 1390, 1668, 1796, 2085, 2245, 2580, 2694, 2780, 4170, 4490, 5388, 5977, 6735, 8340, 8980, 11954, 13470, 17931, 19307, 23908, 26940, 29885, 35862, 38614, 57921, 59770, 62411, 71724, 77228, 89655, 96535, 115842, 119540, 124822, 179310, 187233, 193070, 231684, 249644, 289605, 312055, 358620, 374466, 386140, 579210, 624110, 748932, 936165, 1158420, 1248220, 1872330, 2683673, 3744660, 5367346, 8051019, 10734692, 13418365, 16102038, 26836730, 32204076, 40255095, 53673460, 80510190, 161020380]

約数ペア:

[(1, 161020380), (2, 80510190), (3, 53673460), (4, 40255095), (5, 32204076), (6, 26836730), (10, 16102038), (12, 13418365), (15, 10734692), (20, 8051019), (30, 5367346), (43, 3744660), (60, 2683673), (86, 1872330), (129, 1248220), (139, 1158420), (172, 936165), (215, 748932), (258, 624110), (278, 579210), (417, 386140), (430, 374466), (449, 358620), (516, 312055), (556, 289605), (645, 249644), (695, 231684), (834, 193070), (860, 187233), (898, 179310), (1290, 124822), (1347, 119540), (1390, 115842), (1668, 96535), (1796, 89655), (2085, 77228), (2245, 71724), (2580, 62411), (2694, 59770), (2780, 57921), (4170, 38614), (4490, 35862), (5388, 29885), (5977, 26940), (6735, 23908), (8340, 19307), (8980, 17931), (11954, 13470)]