28857548340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{457}}^1\times {\mathrm{350809}}^1$

素因数の和:351281

約数の個数: 72

約数和(自身を含む): 87726355080

約数和(自身を除く): 58868806740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 457, 914, 1371, 1828, 2285, 2742, 4113, 4570, 5484, 6855, 8226, 9140, 13710, 16452, 20565, 27420, 41130, 82260, 350809, 701618, 1052427, 1403236, 1754045, 2104854, 3157281, 3508090, 4209708, 5262135, 6314562, 7016180, 10524270, 12629124, 15786405, 21048540, 31572810, 63145620, 160319713, 320639426, 480959139, 641278852, 801598565, 961918278, 1442877417, 1603197130, 1923836556, 2404795695, 2885754834, 3206394260, 4809591390, 5771509668, 7214387085, 9619182780, 14428774170, 28857548340]

約数ペア:

[(1, 28857548340), (2, 14428774170), (3, 9619182780), (4, 7214387085), (5, 5771509668), (6, 4809591390), (9, 3206394260), (10, 2885754834), (12, 2404795695), (15, 1923836556), (18, 1603197130), (20, 1442877417), (30, 961918278), (36, 801598565), (45, 641278852), (60, 480959139), (90, 320639426), (180, 160319713), (457, 63145620), (914, 31572810), (1371, 21048540), (1828, 15786405), (2285, 12629124), (2742, 10524270), (4113, 7016180), (4570, 6314562), (5484, 5262135), (6855, 4209708), (8226, 3508090), (9140, 3157281), (13710, 2104854), (16452, 1754045), (20565, 1403236), (27420, 1052427), (41130, 701618), (82260, 350809)]