680851938

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{11941}}^1$

素因数の和:12019

約数の個数: 64

約数和(自身を含む): 1588954752

約数和(自身を除く): 908102814

約数列:

[1, 2, 3, 6, 13, 17, 26, 34, 39, 43, 51, 78, 86, 102, 129, 221, 258, 442, 559, 663, 731, 1118, 1326, 1462, 1677, 2193, 3354, 4386, 9503, 11941, 19006, 23882, 28509, 35823, 57018, 71646, 155233, 202997, 310466, 405994, 465699, 513463, 608991, 931398, 1026926, 1217982, 1540389, 2638961, 3080778, 5277922, 6675019, 7916883, 8728871, 13350038, 15833766, 17457742, 20025057, 26186613, 40050114, 52373226, 113475323, 226950646, 340425969, 680851938]

約数ペア:

[(1, 680851938), (2, 340425969), (3, 226950646), (6, 113475323), (13, 52373226), (17, 40050114), (26, 26186613), (34, 20025057), (39, 17457742), (43, 15833766), (51, 13350038), (78, 8728871), (86, 7916883), (102, 6675019), (129, 5277922), (221, 3080778), (258, 2638961), (442, 1540389), (559, 1217982), (663, 1026926), (731, 931398), (1118, 608991), (1326, 513463), (1462, 465699), (1677, 405994), (2193, 310466), (3354, 202997), (4386, 155233), (9503, 71646), (11941, 57018), (19006, 35823), (23882, 28509)]