51149720

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{20963}}^1$

素因数の和:21035

約数の個数: 32

約数和(自身を含む): 116979120

約数和(自身を除く): 65829400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 20963, 41926, 83852, 104815, 167704, 209630, 419260, 838520, 1278743, 2557486, 5114972, 6393715, 10229944, 12787430, 25574860, 51149720]

約数ペア:

[(1, 51149720), (2, 25574860), (4, 12787430), (5, 10229944), (8, 6393715), (10, 5114972), (20, 2557486), (40, 1278743), (61, 838520), (122, 419260), (244, 209630), (305, 167704), (488, 104815), (610, 83852), (1220, 41926), (2440, 20963)]