1992380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:198

約数の個数: 48

約数和(自身を含む): 4609920

約数和(自身を除く): 2617540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 79, 97, 130, 158, 194, 260, 316, 388, 395, 485, 790, 970, 1027, 1261, 1580, 1940, 2054, 2522, 4108, 5044, 5135, 6305, 7663, 10270, 12610, 15326, 20540, 25220, 30652, 38315, 76630, 99619, 153260, 199238, 398476, 498095, 996190, 1992380]

約数ペア:

[(1, 1992380), (2, 996190), (4, 498095), (5, 398476), (10, 199238), (13, 153260), (20, 99619), (26, 76630), (52, 38315), (65, 30652), (79, 25220), (97, 20540), (130, 15326), (158, 12610), (194, 10270), (260, 7663), (316, 6305), (388, 5135), (395, 5044), (485, 4108), (790, 2522), (970, 2054), (1027, 1940), (1261, 1580)]