87247960

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{20011}}^1$

素因数の和:20131

約数の個数: 32

約数和(自身を含む): 198118800

約数和(自身を除く): 110870840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 20011, 40022, 80044, 100055, 160088, 200110, 400220, 800440, 2181199, 4362398, 8724796, 10905995, 17449592, 21811990, 43623980, 87247960]

約数ペア:

[(1, 87247960), (2, 43623980), (4, 21811990), (5, 17449592), (8, 10905995), (10, 8724796), (20, 4362398), (40, 2181199), (109, 800440), (218, 400220), (436, 200110), (545, 160088), (872, 100055), (1090, 80044), (2180, 40022), (4360, 20011)]