20444720

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{6907}}^1$

素因数の和:6957

約数の個数: 40

約数和(自身を含む): 48825744

約数和(自身を除く): 28381024

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 1480, 2960, 6907, 13814, 27628, 34535, 55256, 69070, 110512, 138140, 255559, 276280, 511118, 552560, 1022236, 1277795, 2044472, 2555590, 4088944, 5111180, 10222360, 20444720]

約数ペア:

[(1, 20444720), (2, 10222360), (4, 5111180), (5, 4088944), (8, 2555590), (10, 2044472), (16, 1277795), (20, 1022236), (37, 552560), (40, 511118), (74, 276280), (80, 255559), (148, 138140), (185, 110512), (296, 69070), (370, 55256), (592, 34535), (740, 27628), (1480, 13814), (2960, 6907)]