209213980

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{11093}}^1$

素因数の和:11166

約数の個数: 48

約数和(自身を含む): 469675584

約数和(自身を除く): 260461604

約数列:

[1, 2, 4, 5, 10, 20, 23, 41, 46, 82, 92, 115, 164, 205, 230, 410, 460, 820, 943, 1886, 3772, 4715, 9430, 11093, 18860, 22186, 44372, 55465, 110930, 221860, 255139, 454813, 510278, 909626, 1020556, 1275695, 1819252, 2274065, 2551390, 4548130, 5102780, 9096260, 10460699, 20921398, 41842796, 52303495, 104606990, 209213980]

約数ペア:

[(1, 209213980), (2, 104606990), (4, 52303495), (5, 41842796), (10, 20921398), (20, 10460699), (23, 9096260), (41, 5102780), (46, 4548130), (82, 2551390), (92, 2274065), (115, 1819252), (164, 1275695), (205, 1020556), (230, 909626), (410, 510278), (460, 454813), (820, 255139), (943, 221860), (1886, 110930), (3772, 55465), (4715, 44372), (9430, 22186), (11093, 18860)]