20809360

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1$

素因数の和:161

約数の個数: 160

約数和(自身を含む): 60746112

約数和(自身を除く): 39936752

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 17, 20, 22, 26, 34, 40, 44, 52, 55, 65, 68, 80, 85, 88, 104, 107, 110, 130, 136, 143, 170, 176, 187, 208, 214, 220, 221, 260, 272, 286, 340, 374, 428, 440, 442, 520, 535, 572, 680, 715, 748, 856, 880, 884, 935, 1040, 1070, 1105, 1144, 1177, 1360, 1391, 1430, 1496, 1712, 1768, 1819, 1870, 2140, 2210, 2288, 2354, 2431, 2782, 2860, 2992, 3536, 3638, 3740, 4280, 4420, 4708, 4862, 5564, 5720, 5885, 6955, 7276, 7480, 8560, 8840, 9095, 9416, 9724, 11128, 11440, 11770, 12155, 13910, 14552, 14960, 15301, 17680, 18190, 18832, 19448, 20009, 22256, 23540, 23647, 24310, 27820, 29104, 30602, 36380, 38896, 40018, 47080, 47294, 48620, 55640, 61204, 72760, 76505, 80036, 94160, 94588, 97240, 100045, 111280, 118235, 122408, 145520, 153010, 160072, 189176, 194480, 200090, 236470, 244816, 260117, 306020, 320144, 378352, 400180, 472940, 520234, 612040, 800360, 945880, 1040468, 1224080, 1300585, 1600720, 1891760, 2080936, 2601170, 4161872, 5202340, 10404680, 20809360]

約数ペア:

[(1, 20809360), (2, 10404680), (4, 5202340), (5, 4161872), (8, 2601170), (10, 2080936), (11, 1891760), (13, 1600720), (16, 1300585), (17, 1224080), (20, 1040468), (22, 945880), (26, 800360), (34, 612040), (40, 520234), (44, 472940), (52, 400180), (55, 378352), (65, 320144), (68, 306020), (80, 260117), (85, 244816), (88, 236470), (104, 200090), (107, 194480), (110, 189176), (130, 160072), (136, 153010), (143, 145520), (170, 122408), (176, 118235), (187, 111280), (208, 100045), (214, 97240), (220, 94588), (221, 94160), (260, 80036), (272, 76505), (286, 72760), (340, 61204), (374, 55640), (428, 48620), (440, 47294), (442, 47080), (520, 40018), (535, 38896), (572, 36380), (680, 30602), (715, 29104), (748, 27820), (856, 24310), (880, 23647), (884, 23540), (935, 22256), (1040, 20009), (1070, 19448), (1105, 18832), (1144, 18190), (1177, 17680), (1360, 15301), (1391, 14960), (1430, 14552), (1496, 13910), (1712, 12155), (1768, 11770), (1819, 11440), (1870, 11128), (2140, 9724), (2210, 9416), (2288, 9095), (2354, 8840), (2431, 8560), (2782, 7480), (2860, 7276), (2992, 6955), (3536, 5885), (3638, 5720), (3740, 5564), (4280, 4862), (4420, 4708)]