1640228356

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1\times {\mathrm{1523}}^1$

素因数の和:1828

約数の個数: 48

約数和(自身を含む): 3136392000

約数和(自身を除く): 1496163644

約数列:

[1, 2, 4, 13, 26, 52, 139, 149, 278, 298, 556, 596, 1523, 1807, 1937, 3046, 3614, 3874, 6092, 7228, 7748, 19799, 20711, 39598, 41422, 79196, 82844, 211697, 226927, 269243, 423394, 453854, 538486, 846788, 907708, 1076972, 2752061, 2950051, 5504122, 5900102, 11008244, 11800204, 31542853, 63085706, 126171412, 410057089, 820114178, 1640228356]

約数ペア:

[(1, 1640228356), (2, 820114178), (4, 410057089), (13, 126171412), (26, 63085706), (52, 31542853), (139, 11800204), (149, 11008244), (278, 5900102), (298, 5504122), (556, 2950051), (596, 2752061), (1523, 1076972), (1807, 907708), (1937, 846788), (3046, 538486), (3614, 453854), (3874, 423394), (6092, 269243), (7228, 226927), (7748, 211697), (19799, 82844), (20711, 79196), (39598, 41422)]