1538420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:180

約数の個数: 48

約数和(自身を含む): 3572688

約数和(自身を除く): 2034268

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 61, 65, 97, 122, 130, 194, 244, 260, 305, 388, 485, 610, 793, 970, 1220, 1261, 1586, 1940, 2522, 3172, 3965, 5044, 5917, 6305, 7930, 11834, 12610, 15860, 23668, 25220, 29585, 59170, 76921, 118340, 153842, 307684, 384605, 769210, 1538420]

約数ペア:

[(1, 1538420), (2, 769210), (4, 384605), (5, 307684), (10, 153842), (13, 118340), (20, 76921), (26, 59170), (52, 29585), (61, 25220), (65, 23668), (97, 15860), (122, 12610), (130, 11834), (194, 7930), (244, 6305), (260, 5917), (305, 5044), (388, 3965), (485, 3172), (610, 2522), (793, 1940), (970, 1586), (1220, 1261)]