20344547540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{277}}^1\times {\mathrm{347}}^1\times {\mathrm{557}}^1$

素因数の和:1209

約数の個数: 96

約数和(自身を含む): 45345847680

約数和(自身を除く): 25001300140

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 277, 347, 380, 554, 557, 694, 1108, 1114, 1385, 1388, 1735, 2228, 2770, 2785, 3470, 5263, 5540, 5570, 6593, 6940, 10526, 10583, 11140, 13186, 21052, 21166, 26315, 26372, 32965, 42332, 52630, 52915, 65930, 96119, 105260, 105830, 131860, 154289, 192238, 193279, 211660, 308578, 384476, 386558, 480595, 617156, 771445, 773116, 961190, 966395, 1542890, 1826261, 1922380, 1932790, 2931491, 3085780, 3652522, 3672301, 3865580, 5862982, 7305044, 7344602, 9131305, 11725964, 14657455, 14689204, 18262610, 18361505, 29314910, 36525220, 36723010, 53538283, 58629820, 73446020, 107076566, 214153132, 267691415, 535382830, 1017227377, 1070765660, 2034454754, 4068909508, 5086136885, 10172273770, 20344547540]

約数ペア:

[(1, 20344547540), (2, 10172273770), (4, 5086136885), (5, 4068909508), (10, 2034454754), (19, 1070765660), (20, 1017227377), (38, 535382830), (76, 267691415), (95, 214153132), (190, 107076566), (277, 73446020), (347, 58629820), (380, 53538283), (554, 36723010), (557, 36525220), (694, 29314910), (1108, 18361505), (1114, 18262610), (1385, 14689204), (1388, 14657455), (1735, 11725964), (2228, 9131305), (2770, 7344602), (2785, 7305044), (3470, 5862982), (5263, 3865580), (5540, 3672301), (5570, 3652522), (6593, 3085780), (6940, 2931491), (10526, 1932790), (10583, 1922380), (11140, 1826261), (13186, 1542890), (21052, 966395), (21166, 961190), (26315, 773116), (26372, 771445), (32965, 617156), (42332, 480595), (52630, 386558), (52915, 384476), (65930, 308578), (96119, 211660), (105260, 193279), (105830, 192238), (131860, 154289)]