803980

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{659}}^1$

素因数の和:729

約数の個数: 24

約数和(自身を含む): 1718640

約数和(自身を除く): 914660

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 659, 1220, 1318, 2636, 3295, 6590, 13180, 40199, 80398, 160796, 200995, 401990, 803980]

約数ペア:

[(1, 803980), (2, 401990), (4, 200995), (5, 160796), (10, 80398), (20, 40199), (61, 13180), (122, 6590), (244, 3295), (305, 2636), (610, 1318), (659, 1220)]