215825720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{15823}}^1$

素因数の和:15876

約数の個数: 64

約数和(自身を含む): 546877440

約数和(自身を除く): 331051720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 220, 248, 310, 341, 440, 620, 682, 1240, 1364, 1705, 2728, 3410, 6820, 13640, 15823, 31646, 63292, 79115, 126584, 158230, 174053, 316460, 348106, 490513, 632920, 696212, 870265, 981026, 1392424, 1740530, 1962052, 2452565, 3481060, 3924104, 4905130, 5395643, 6962120, 9810260, 10791286, 19620520, 21582572, 26978215, 43165144, 53956430, 107912860, 215825720]

約数ペア:

[(1, 215825720), (2, 107912860), (4, 53956430), (5, 43165144), (8, 26978215), (10, 21582572), (11, 19620520), (20, 10791286), (22, 9810260), (31, 6962120), (40, 5395643), (44, 4905130), (55, 3924104), (62, 3481060), (88, 2452565), (110, 1962052), (124, 1740530), (155, 1392424), (220, 981026), (248, 870265), (310, 696212), (341, 632920), (440, 490513), (620, 348106), (682, 316460), (1240, 174053), (1364, 158230), (1705, 126584), (2728, 79115), (3410, 63292), (6820, 31646), (13640, 15823)]