9961900

素因数分解:

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

素因数の和:203

約数の個数: 72

約数和(自身を含む): 23817920

約数和(自身を除く): 13856020

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 79, 97, 100, 130, 158, 194, 260, 316, 325, 388, 395, 485, 650, 790, 970, 1027, 1261, 1300, 1580, 1940, 1975, 2054, 2425, 2522, 3950, 4108, 4850, 5044, 5135, 6305, 7663, 7900, 9700, 10270, 12610, 15326, 20540, 25220, 25675, 30652, 31525, 38315, 51350, 63050, 76630, 99619, 102700, 126100, 153260, 191575, 199238, 383150, 398476, 498095, 766300, 996190, 1992380, 2490475, 4980950, 9961900]

約数ペア:

[(1, 9961900), (2, 4980950), (4, 2490475), (5, 1992380), (10, 996190), (13, 766300), (20, 498095), (25, 398476), (26, 383150), (50, 199238), (52, 191575), (65, 153260), (79, 126100), (97, 102700), (100, 99619), (130, 76630), (158, 63050), (194, 51350), (260, 38315), (316, 31525), (325, 30652), (388, 25675), (395, 25220), (485, 20540), (650, 15326), (790, 12610), (970, 10270), (1027, 9700), (1261, 7900), (1300, 7663), (1580, 6305), (1940, 5135), (1975, 5044), (2054, 4850), (2425, 4108), (2522, 3950)]