20609562820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^2\times {\mathrm{15913}}^1$

素因数の和:15998

約数の個数: 144

約数和(自身を含む): 55887931008

約数和(自身を除く): 35278368188

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 29, 35, 44, 55, 58, 70, 77, 110, 116, 140, 145, 154, 203, 220, 290, 308, 319, 385, 406, 580, 638, 770, 812, 841, 1015, 1276, 1540, 1595, 1682, 2030, 2233, 3190, 3364, 4060, 4205, 4466, 5887, 6380, 8410, 8932, 9251, 11165, 11774, 15913, 16820, 18502, 22330, 23548, 29435, 31826, 37004, 44660, 46255, 58870, 63652, 64757, 79565, 92510, 111391, 117740, 129514, 159130, 175043, 185020, 222782, 259028, 318260, 323785, 350086, 445564, 461477, 556955, 647570, 700172, 875215, 922954, 1113910, 1225301, 1295140, 1750430, 1845908, 2227820, 2307385, 2450602, 3230339, 3500860, 4614770, 4901204, 5076247, 6126505, 6460678, 9229540, 10152494, 12253010, 12921356, 13382833, 16151695, 20304988, 24506020, 25381235, 26765666, 32303390, 35533729, 50762470, 53531332, 64606780, 66914165, 71067458, 93679831, 101524940, 133828330, 142134916, 147211163, 177668645, 187359662, 267656660, 294422326, 355337290, 374719324, 468399155, 588844652, 710674580, 736055815, 936798310, 1030478141, 1472111630, 1873596620, 2060956282, 2944223260, 4121912564, 5152390705, 10304781410, 20609562820]

約数ペア:

[(1, 20609562820), (2, 10304781410), (4, 5152390705), (5, 4121912564), (7, 2944223260), (10, 2060956282), (11, 1873596620), (14, 1472111630), (20, 1030478141), (22, 936798310), (28, 736055815), (29, 710674580), (35, 588844652), (44, 468399155), (55, 374719324), (58, 355337290), (70, 294422326), (77, 267656660), (110, 187359662), (116, 177668645), (140, 147211163), (145, 142134916), (154, 133828330), (203, 101524940), (220, 93679831), (290, 71067458), (308, 66914165), (319, 64606780), (385, 53531332), (406, 50762470), (580, 35533729), (638, 32303390), (770, 26765666), (812, 25381235), (841, 24506020), (1015, 20304988), (1276, 16151695), (1540, 13382833), (1595, 12921356), (1682, 12253010), (2030, 10152494), (2233, 9229540), (3190, 6460678), (3364, 6126505), (4060, 5076247), (4205, 4901204), (4466, 4614770), (5887, 3500860), (6380, 3230339), (8410, 2450602), (8932, 2307385), (9251, 2227820), (11165, 1845908), (11774, 1750430), (15913, 1295140), (16820, 1225301), (18502, 1113910), (22330, 922954), (23548, 875215), (29435, 700172), (31826, 647570), (37004, 556955), (44660, 461477), (46255, 445564), (58870, 350086), (63652, 323785), (64757, 318260), (79565, 259028), (92510, 222782), (111391, 185020), (117740, 175043), (129514, 159130)]