201977960

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{71119}}^1$

素因数の和:71201

約数の個数: 32

約数和(自身を含む): 460857600

約数和(自身を除く): 258879640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 71119, 142238, 284476, 355595, 568952, 711190, 1422380, 2844760, 5049449, 10098898, 20197796, 25247245, 40395592, 50494490, 100988980, 201977960]

約数ペア:

[(1, 201977960), (2, 100988980), (4, 50494490), (5, 40395592), (8, 25247245), (10, 20197796), (20, 10098898), (40, 5049449), (71, 2844760), (142, 1422380), (284, 711190), (355, 568952), (568, 355595), (710, 284476), (1420, 142238), (2840, 71119)]