405153460

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{313}}^1\times {\mathrm{1061}}^1$

素因数の和:1444

約数の個数: 48

約数和(自身を含む): 868350672

約数和(自身を除く): 463197212

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 313, 610, 626, 1061, 1220, 1252, 1565, 2122, 3130, 4244, 5305, 6260, 10610, 19093, 21220, 38186, 64721, 76372, 95465, 129442, 190930, 258884, 323605, 332093, 381860, 647210, 664186, 1294420, 1328372, 1660465, 3320930, 6641860, 20257673, 40515346, 81030692, 101288365, 202576730, 405153460]

約数ペア:

[(1, 405153460), (2, 202576730), (4, 101288365), (5, 81030692), (10, 40515346), (20, 20257673), (61, 6641860), (122, 3320930), (244, 1660465), (305, 1328372), (313, 1294420), (610, 664186), (626, 647210), (1061, 381860), (1220, 332093), (1252, 323605), (1565, 258884), (2122, 190930), (3130, 129442), (4244, 95465), (5305, 76372), (6260, 64721), (10610, 38186), (19093, 21220)]