640252620

素因数分解:

$2^2\times 3^3\times 5^1\times 7^2\times {\mathrm{24197}}^1$

素因数の和:24229

約数の個数: 144

約数和(自身を含む): 2317200480

約数和(自身を除く): 1676947860

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 49, 54, 60, 63, 70, 84, 90, 98, 105, 108, 126, 135, 140, 147, 180, 189, 196, 210, 245, 252, 270, 294, 315, 378, 420, 441, 490, 540, 588, 630, 735, 756, 882, 945, 980, 1260, 1323, 1470, 1764, 1890, 2205, 2646, 2940, 3780, 4410, 5292, 6615, 8820, 13230, 24197, 26460, 48394, 72591, 96788, 120985, 145182, 169379, 217773, 241970, 290364, 338758, 362955, 435546, 483940, 508137, 653319, 677516, 725910, 846895, 871092, 1016274, 1088865, 1185653, 1306638, 1451820, 1524411, 1693790, 2032548, 2177730, 2371306, 2540685, 2613276, 3048822, 3266595, 3387580, 3556959, 4355460, 4573233, 4742612, 5081370, 5928265, 6097644, 6533190, 7113918, 7622055, 9146466, 10162740, 10670877, 11856530, 13066380, 14227836, 15244110, 17784795, 18292932, 21341754, 22866165, 23713060, 30488220, 32012631, 35569590, 42683508, 45732330, 53354385, 64025262, 71139180, 91464660, 106708770, 128050524, 160063155, 213417540, 320126310, 640252620]

約数ペア:

[(1, 640252620), (2, 320126310), (3, 213417540), (4, 160063155), (5, 128050524), (6, 106708770), (7, 91464660), (9, 71139180), (10, 64025262), (12, 53354385), (14, 45732330), (15, 42683508), (18, 35569590), (20, 32012631), (21, 30488220), (27, 23713060), (28, 22866165), (30, 21341754), (35, 18292932), (36, 17784795), (42, 15244110), (45, 14227836), (49, 13066380), (54, 11856530), (60, 10670877), (63, 10162740), (70, 9146466), (84, 7622055), (90, 7113918), (98, 6533190), (105, 6097644), (108, 5928265), (126, 5081370), (135, 4742612), (140, 4573233), (147, 4355460), (180, 3556959), (189, 3387580), (196, 3266595), (210, 3048822), (245, 2613276), (252, 2540685), (270, 2371306), (294, 2177730), (315, 2032548), (378, 1693790), (420, 1524411), (441, 1451820), (490, 1306638), (540, 1185653), (588, 1088865), (630, 1016274), (735, 871092), (756, 846895), (882, 725910), (945, 677516), (980, 653319), (1260, 508137), (1323, 483940), (1470, 435546), (1764, 362955), (1890, 338758), (2205, 290364), (2646, 241970), (2940, 217773), (3780, 169379), (4410, 145182), (5292, 120985), (6615, 96788), (8820, 72591), (13230, 48394), (24197, 26460)]