638510220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{241}}^1\times {\mathrm{359}}^1$

素因数の和:656

約数の個数: 144

約数和(自身を含む): 1997835840

約数和(自身を除く): 1359325620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 41, 45, 60, 82, 90, 123, 164, 180, 205, 241, 246, 359, 369, 410, 482, 492, 615, 718, 723, 738, 820, 964, 1077, 1205, 1230, 1436, 1446, 1476, 1795, 1845, 2154, 2169, 2410, 2460, 2892, 3231, 3590, 3615, 3690, 4308, 4338, 4820, 5385, 6462, 7180, 7230, 7380, 8676, 9881, 10770, 10845, 12924, 14460, 14719, 16155, 19762, 21540, 21690, 29438, 29643, 32310, 39524, 43380, 44157, 49405, 58876, 59286, 64620, 73595, 86519, 88314, 88929, 98810, 118572, 132471, 147190, 148215, 173038, 176628, 177858, 197620, 220785, 259557, 264942, 294380, 296430, 346076, 355716, 432595, 441570, 444645, 519114, 529884, 592860, 662355, 778671, 865190, 883140, 889290, 1038228, 1297785, 1324710, 1557342, 1730380, 1778580, 2595570, 2649420, 3114684, 3547279, 3893355, 5191140, 7094558, 7786710, 10641837, 14189116, 15573420, 17736395, 21283674, 31925511, 35472790, 42567348, 53209185, 63851022, 70945580, 106418370, 127702044, 159627555, 212836740, 319255110, 638510220]

約数ペア:

[(1, 638510220), (2, 319255110), (3, 212836740), (4, 159627555), (5, 127702044), (6, 106418370), (9, 70945580), (10, 63851022), (12, 53209185), (15, 42567348), (18, 35472790), (20, 31925511), (30, 21283674), (36, 17736395), (41, 15573420), (45, 14189116), (60, 10641837), (82, 7786710), (90, 7094558), (123, 5191140), (164, 3893355), (180, 3547279), (205, 3114684), (241, 2649420), (246, 2595570), (359, 1778580), (369, 1730380), (410, 1557342), (482, 1324710), (492, 1297785), (615, 1038228), (718, 889290), (723, 883140), (738, 865190), (820, 778671), (964, 662355), (1077, 592860), (1205, 529884), (1230, 519114), (1436, 444645), (1446, 441570), (1476, 432595), (1795, 355716), (1845, 346076), (2154, 296430), (2169, 294380), (2410, 264942), (2460, 259557), (2892, 220785), (3231, 197620), (3590, 177858), (3615, 176628), (3690, 173038), (4308, 148215), (4338, 147190), (4820, 132471), (5385, 118572), (6462, 98810), (7180, 88929), (7230, 88314), (7380, 86519), (8676, 73595), (9881, 64620), (10770, 59286), (10845, 58876), (12924, 49405), (14460, 44157), (14719, 43380), (16155, 39524), (19762, 32310), (21540, 29643), (21690, 29438)]