918113840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{509}}^1\times {\mathrm{3221}}^1$

素因数の和:3750

約数の個数: 80

約数和(自身を含む): 2445111360

約数和(自身を除く): 1526997520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 509, 560, 1018, 2036, 2545, 3221, 3563, 4072, 5090, 6442, 7126, 8144, 10180, 12884, 14252, 16105, 17815, 20360, 22547, 25768, 28504, 32210, 35630, 40720, 45094, 51536, 57008, 64420, 71260, 90188, 112735, 128840, 142520, 180376, 225470, 257680, 285040, 360752, 450940, 901880, 1639489, 1803760, 3278978, 6557956, 8197445, 11476423, 13115912, 16394890, 22952846, 26231824, 32789780, 45905692, 57382115, 65579560, 91811384, 114764230, 131159120, 183622768, 229528460, 459056920, 918113840]

約数ペア:

[(1, 918113840), (2, 459056920), (4, 229528460), (5, 183622768), (7, 131159120), (8, 114764230), (10, 91811384), (14, 65579560), (16, 57382115), (20, 45905692), (28, 32789780), (35, 26231824), (40, 22952846), (56, 16394890), (70, 13115912), (80, 11476423), (112, 8197445), (140, 6557956), (280, 3278978), (509, 1803760), (560, 1639489), (1018, 901880), (2036, 450940), (2545, 360752), (3221, 285040), (3563, 257680), (4072, 225470), (5090, 180376), (6442, 142520), (7126, 128840), (8144, 112735), (10180, 90188), (12884, 71260), (14252, 64420), (16105, 57008), (17815, 51536), (20360, 45094), (22547, 40720), (25768, 35630), (28504, 32210)]