20105693904

素因数分解:

$2^4\times 3^1\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{85781}}^1$

素因数の和:86068

約数の個数: 80

約数和(自身を含む): 54886754880

約数和(自身を除く): 34781060976

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 38, 48, 57, 76, 114, 152, 228, 257, 304, 456, 514, 771, 912, 1028, 1542, 2056, 3084, 4112, 4883, 6168, 9766, 12336, 14649, 19532, 29298, 39064, 58596, 78128, 85781, 117192, 171562, 234384, 257343, 343124, 514686, 686248, 1029372, 1372496, 1629839, 2058744, 3259678, 4117488, 4889517, 6519356, 9779034, 13038712, 19558068, 22045717, 26077424, 39116136, 44091434, 66137151, 78232272, 88182868, 132274302, 176365736, 264548604, 352731472, 418868623, 529097208, 837737246, 1058194416, 1256605869, 1675474492, 2513211738, 3350948984, 5026423476, 6701897968, 10052846952, 20105693904]

約数ペア:

[(1, 20105693904), (2, 10052846952), (3, 6701897968), (4, 5026423476), (6, 3350948984), (8, 2513211738), (12, 1675474492), (16, 1256605869), (19, 1058194416), (24, 837737246), (38, 529097208), (48, 418868623), (57, 352731472), (76, 264548604), (114, 176365736), (152, 132274302), (228, 88182868), (257, 78232272), (304, 66137151), (456, 44091434), (514, 39116136), (771, 26077424), (912, 22045717), (1028, 19558068), (1542, 13038712), (2056, 9779034), (3084, 6519356), (4112, 4889517), (4883, 4117488), (6168, 3259678), (9766, 2058744), (12336, 1629839), (14649, 1372496), (19532, 1029372), (29298, 686248), (39064, 514686), (58596, 343124), (78128, 257343), (85781, 234384), (117192, 171562)]