64738620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{457}}^1\times {\mathrm{787}}^1$

素因数の和:1259

約数の個数: 72

約数和(自身を含む): 197053584

約数和(自身を除く): 132314964

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 457, 787, 914, 1371, 1574, 1828, 2285, 2361, 2742, 3148, 3935, 4113, 4570, 4722, 5484, 6855, 7083, 7870, 8226, 9140, 9444, 11805, 13710, 14166, 15740, 16452, 20565, 23610, 27420, 28332, 35415, 41130, 47220, 70830, 82260, 141660, 359659, 719318, 1078977, 1438636, 1798295, 2157954, 3236931, 3596590, 4315908, 5394885, 6473862, 7193180, 10789770, 12947724, 16184655, 21579540, 32369310, 64738620]

約数ペア:

[(1, 64738620), (2, 32369310), (3, 21579540), (4, 16184655), (5, 12947724), (6, 10789770), (9, 7193180), (10, 6473862), (12, 5394885), (15, 4315908), (18, 3596590), (20, 3236931), (30, 2157954), (36, 1798295), (45, 1438636), (60, 1078977), (90, 719318), (180, 359659), (457, 141660), (787, 82260), (914, 70830), (1371, 47220), (1574, 41130), (1828, 35415), (2285, 28332), (2361, 27420), (2742, 23610), (3148, 20565), (3935, 16452), (4113, 15740), (4570, 14166), (4722, 13710), (5484, 11805), (6855, 9444), (7083, 9140), (7870, 8226)]