421036720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{404843}}^1$

素因数の和:404869

約数の個数: 40

約数和(自身を含む): 1054213776

約数和(自身を除く): 633177056

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 404843, 809686, 1619372, 2024215, 3238744, 4048430, 5262959, 6477488, 8096860, 10525918, 16193720, 21051836, 26314795, 32387440, 42103672, 52629590, 84207344, 105259180, 210518360, 421036720]

約数ペア:

[(1, 421036720), (2, 210518360), (4, 105259180), (5, 84207344), (8, 52629590), (10, 42103672), (13, 32387440), (16, 26314795), (20, 21051836), (26, 16193720), (40, 10525918), (52, 8096860), (65, 6477488), (80, 5262959), (104, 4048430), (130, 3238744), (208, 2024215), (260, 1619372), (520, 809686), (1040, 404843)]