19923800

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:205

約数の個数: 96

約数和(自身を含む): 51038400

約数和(自身を除く): 31114600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 79, 97, 100, 104, 130, 158, 194, 200, 260, 316, 325, 388, 395, 485, 520, 632, 650, 776, 790, 970, 1027, 1261, 1300, 1580, 1940, 1975, 2054, 2425, 2522, 2600, 3160, 3880, 3950, 4108, 4850, 5044, 5135, 6305, 7663, 7900, 8216, 9700, 10088, 10270, 12610, 15326, 15800, 19400, 20540, 25220, 25675, 30652, 31525, 38315, 41080, 50440, 51350, 61304, 63050, 76630, 99619, 102700, 126100, 153260, 191575, 199238, 205400, 252200, 306520, 383150, 398476, 498095, 766300, 796952, 996190, 1532600, 1992380, 2490475, 3984760, 4980950, 9961900, 19923800]

約数ペア:

[(1, 19923800), (2, 9961900), (4, 4980950), (5, 3984760), (8, 2490475), (10, 1992380), (13, 1532600), (20, 996190), (25, 796952), (26, 766300), (40, 498095), (50, 398476), (52, 383150), (65, 306520), (79, 252200), (97, 205400), (100, 199238), (104, 191575), (130, 153260), (158, 126100), (194, 102700), (200, 99619), (260, 76630), (316, 63050), (325, 61304), (388, 51350), (395, 50440), (485, 41080), (520, 38315), (632, 31525), (650, 30652), (776, 25675), (790, 25220), (970, 20540), (1027, 19400), (1261, 15800), (1300, 15326), (1580, 12610), (1940, 10270), (1975, 10088), (2054, 9700), (2425, 8216), (2522, 7900), (2600, 7663), (3160, 6305), (3880, 5135), (3950, 5044), (4108, 4850)]