4213880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1$

素因数の和:240

約数の個数: 64

約数和(自身を含む): 10579680

約数和(自身を除く): 6365800

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 61, 88, 110, 122, 157, 220, 244, 305, 314, 440, 488, 610, 628, 671, 785, 1220, 1256, 1342, 1570, 1727, 2440, 2684, 3140, 3355, 3454, 5368, 6280, 6710, 6908, 8635, 9577, 13420, 13816, 17270, 19154, 26840, 34540, 38308, 47885, 69080, 76616, 95770, 105347, 191540, 210694, 383080, 421388, 526735, 842776, 1053470, 2106940, 4213880]

約数ペア:

[(1, 4213880), (2, 2106940), (4, 1053470), (5, 842776), (8, 526735), (10, 421388), (11, 383080), (20, 210694), (22, 191540), (40, 105347), (44, 95770), (55, 76616), (61, 69080), (88, 47885), (110, 38308), (122, 34540), (157, 26840), (220, 19154), (244, 17270), (305, 13816), (314, 13420), (440, 9577), (488, 8635), (610, 6908), (628, 6710), (671, 6280), (785, 5368), (1220, 3454), (1256, 3355), (1342, 3140), (1570, 2684), (1727, 2440)]