42207880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:239

約数の個数: 128

約数和(自身を含む): 114670080

約数和(自身を除く): 72462200

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 47, 52, 55, 65, 88, 94, 104, 110, 130, 143, 157, 188, 220, 235, 260, 286, 314, 376, 440, 470, 517, 520, 572, 611, 628, 715, 785, 940, 1034, 1144, 1222, 1256, 1430, 1570, 1727, 1880, 2041, 2068, 2444, 2585, 2860, 3055, 3140, 3454, 4082, 4136, 4888, 5170, 5720, 6110, 6280, 6721, 6908, 7379, 8164, 8635, 10205, 10340, 12220, 13442, 13816, 14758, 16328, 17270, 20410, 20680, 22451, 24440, 26884, 29516, 33605, 34540, 36895, 40820, 44902, 53768, 59032, 67210, 69080, 73790, 81169, 81640, 89804, 95927, 112255, 134420, 147580, 162338, 179608, 191854, 224510, 268840, 295160, 324676, 383708, 405845, 449020, 479635, 649352, 767416, 811690, 898040, 959270, 1055197, 1623380, 1918540, 2110394, 3246760, 3837080, 4220788, 5275985, 8441576, 10551970, 21103940, 42207880]

約数ペア:

[(1, 42207880), (2, 21103940), (4, 10551970), (5, 8441576), (8, 5275985), (10, 4220788), (11, 3837080), (13, 3246760), (20, 2110394), (22, 1918540), (26, 1623380), (40, 1055197), (44, 959270), (47, 898040), (52, 811690), (55, 767416), (65, 649352), (88, 479635), (94, 449020), (104, 405845), (110, 383708), (130, 324676), (143, 295160), (157, 268840), (188, 224510), (220, 191854), (235, 179608), (260, 162338), (286, 147580), (314, 134420), (376, 112255), (440, 95927), (470, 89804), (517, 81640), (520, 81169), (572, 73790), (611, 69080), (628, 67210), (715, 59032), (785, 53768), (940, 44902), (1034, 40820), (1144, 36895), (1222, 34540), (1256, 33605), (1430, 29516), (1570, 26884), (1727, 24440), (1880, 22451), (2041, 20680), (2068, 20410), (2444, 17270), (2585, 16328), (2860, 14758), (3055, 13816), (3140, 13442), (3454, 12220), (4082, 10340), (4136, 10205), (4888, 8635), (5170, 8164), (5720, 7379), (6110, 6908), (6280, 6721)]