20357480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{3559}}^1$

素因数の和:3594

約数の個数: 64

約数和(自身を含む): 53827200

約数和(自身を除く): 33469720

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 220, 260, 286, 440, 520, 572, 715, 1144, 1430, 2860, 3559, 5720, 7118, 14236, 17795, 28472, 35590, 39149, 46267, 71180, 78298, 92534, 142360, 156596, 185068, 195745, 231335, 313192, 370136, 391490, 462670, 508937, 782980, 925340, 1017874, 1565960, 1850680, 2035748, 2544685, 4071496, 5089370, 10178740, 20357480]

約数ペア:

[(1, 20357480), (2, 10178740), (4, 5089370), (5, 4071496), (8, 2544685), (10, 2035748), (11, 1850680), (13, 1565960), (20, 1017874), (22, 925340), (26, 782980), (40, 508937), (44, 462670), (52, 391490), (55, 370136), (65, 313192), (88, 231335), (104, 195745), (110, 185068), (130, 156596), (143, 142360), (220, 92534), (260, 78298), (286, 71180), (440, 46267), (520, 39149), (572, 35590), (715, 28472), (1144, 17795), (1430, 14236), (2860, 7118), (3559, 5720)]