18015492040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{37781}}^1$

素因数の和:37943

約数の個数: 128

約数和(自身を含む): 50271217920

約数和(自身を除く): 32255725880

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 131, 140, 182, 260, 262, 280, 364, 455, 520, 524, 655, 728, 910, 917, 1048, 1310, 1703, 1820, 1834, 2620, 3406, 3640, 3668, 4585, 5240, 6812, 7336, 8515, 9170, 11921, 13624, 17030, 18340, 23842, 34060, 36680, 37781, 47684, 59605, 68120, 75562, 95368, 119210, 151124, 188905, 238420, 264467, 302248, 377810, 476840, 491153, 528934, 755620, 982306, 1057868, 1322335, 1511240, 1964612, 2115736, 2455765, 2644670, 3438071, 3929224, 4911530, 4949311, 5289340, 6876142, 9823060, 9898622, 10578680, 13752284, 17190355, 19646120, 19797244, 24746555, 27504568, 34380710, 34645177, 39594488, 49493110, 64341043, 68761420, 69290354, 98986220, 128682086, 137522840, 138580708, 173225885, 197972440, 257364172, 277161416, 321705215, 346451770, 450387301, 514728344, 643410430, 692903540, 900774602, 1286820860, 1385807080, 1801549204, 2251936505, 2573641720, 3603098408, 4503873010, 9007746020, 18015492040]

約数ペア:

[(1, 18015492040), (2, 9007746020), (4, 4503873010), (5, 3603098408), (7, 2573641720), (8, 2251936505), (10, 1801549204), (13, 1385807080), (14, 1286820860), (20, 900774602), (26, 692903540), (28, 643410430), (35, 514728344), (40, 450387301), (52, 346451770), (56, 321705215), (65, 277161416), (70, 257364172), (91, 197972440), (104, 173225885), (130, 138580708), (131, 137522840), (140, 128682086), (182, 98986220), (260, 69290354), (262, 68761420), (280, 64341043), (364, 49493110), (455, 39594488), (520, 34645177), (524, 34380710), (655, 27504568), (728, 24746555), (910, 19797244), (917, 19646120), (1048, 17190355), (1310, 13752284), (1703, 10578680), (1820, 9898622), (1834, 9823060), (2620, 6876142), (3406, 5289340), (3640, 4949311), (3668, 4911530), (4585, 3929224), (5240, 3438071), (6812, 2644670), (7336, 2455765), (8515, 2115736), (9170, 1964612), (11921, 1511240), (13624, 1322335), (17030, 1057868), (18340, 982306), (23842, 755620), (34060, 528934), (36680, 491153), (37781, 476840), (47684, 377810), (59605, 302248), (68120, 264467), (75562, 238420), (95368, 188905), (119210, 151124)]