30980830

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^2\times {\mathrm{97}}^1$

素因数の和:205

約数の個数: 48

約数和(自身を含む): 60787440

約数和(自身を除く): 29806610

約数列:

[1, 2, 5, 10, 19, 38, 41, 82, 95, 97, 190, 194, 205, 410, 485, 779, 970, 1558, 1681, 1843, 3362, 3686, 3895, 3977, 7790, 7954, 8405, 9215, 16810, 18430, 19885, 31939, 39770, 63878, 75563, 151126, 159695, 163057, 319390, 326114, 377815, 755630, 815285, 1630570, 3098083, 6196166, 15490415, 30980830]

約数ペア:

[(1, 30980830), (2, 15490415), (5, 6196166), (10, 3098083), (19, 1630570), (38, 815285), (41, 755630), (82, 377815), (95, 326114), (97, 319390), (190, 163057), (194, 159695), (205, 151126), (410, 75563), (485, 63878), (779, 39770), (970, 31939), (1558, 19885), (1681, 18430), (1843, 16810), (3362, 9215), (3686, 8405), (3895, 7954), (3977, 7790)]