180764720

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{72889}}^1$

素因数の和:72933

約数の個数: 40

約数和(自身を含む): 433841280

約数和(自身を除く): 253076560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 72889, 145778, 291556, 364445, 583112, 728890, 1166224, 1457780, 2259559, 2915560, 4519118, 5831120, 9038236, 11297795, 18076472, 22595590, 36152944, 45191180, 90382360, 180764720]

約数ペア:

[(1, 180764720), (2, 90382360), (4, 45191180), (5, 36152944), (8, 22595590), (10, 18076472), (16, 11297795), (20, 9038236), (31, 5831120), (40, 4519118), (62, 2915560), (80, 2259559), (124, 1457780), (155, 1166224), (248, 728890), (310, 583112), (496, 364445), (620, 291556), (1240, 145778), (2480, 72889)]