31239520

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{653}}^1$

素因数の和:704

約数の個数: 96

約数和(自身を含む): 83063232

約数和(自身を除く): 51823712

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 32, 40, 46, 52, 65, 80, 92, 104, 115, 130, 160, 184, 208, 230, 260, 299, 368, 416, 460, 520, 598, 653, 736, 920, 1040, 1196, 1306, 1495, 1840, 2080, 2392, 2612, 2990, 3265, 3680, 4784, 5224, 5980, 6530, 8489, 9568, 10448, 11960, 13060, 15019, 16978, 20896, 23920, 26120, 30038, 33956, 42445, 47840, 52240, 60076, 67912, 75095, 84890, 104480, 120152, 135824, 150190, 169780, 195247, 240304, 271648, 300380, 339560, 390494, 480608, 600760, 679120, 780988, 976235, 1201520, 1358240, 1561976, 1952470, 2403040, 3123952, 3904940, 6247904, 7809880, 15619760, 31239520]

約数ペア:

[(1, 31239520), (2, 15619760), (4, 7809880), (5, 6247904), (8, 3904940), (10, 3123952), (13, 2403040), (16, 1952470), (20, 1561976), (23, 1358240), (26, 1201520), (32, 976235), (40, 780988), (46, 679120), (52, 600760), (65, 480608), (80, 390494), (92, 339560), (104, 300380), (115, 271648), (130, 240304), (160, 195247), (184, 169780), (208, 150190), (230, 135824), (260, 120152), (299, 104480), (368, 84890), (416, 75095), (460, 67912), (520, 60076), (598, 52240), (653, 47840), (736, 42445), (920, 33956), (1040, 30038), (1196, 26120), (1306, 23920), (1495, 20896), (1840, 16978), (2080, 15019), (2392, 13060), (2612, 11960), (2990, 10448), (3265, 9568), (3680, 8489), (4784, 6530), (5224, 5980)]