2123454980

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{251}}^1\times {\mathrm{3229}}^1$

素因数の和:3620

約数の個数: 48

約数和(自身を含む): 4512594240

約数和(自身を除く): 2389139260

約数列:

[1, 2, 4, 5, 10, 20, 131, 251, 262, 502, 524, 655, 1004, 1255, 1310, 2510, 2620, 3229, 5020, 6458, 12916, 16145, 32290, 32881, 64580, 65762, 131524, 164405, 328810, 422999, 657620, 810479, 845998, 1620958, 1691996, 2114995, 3241916, 4052395, 4229990, 8104790, 8459980, 16209580, 106172749, 212345498, 424690996, 530863745, 1061727490, 2123454980]

約数ペア:

[(1, 2123454980), (2, 1061727490), (4, 530863745), (5, 424690996), (10, 212345498), (20, 106172749), (131, 16209580), (251, 8459980), (262, 8104790), (502, 4229990), (524, 4052395), (655, 3241916), (1004, 2114995), (1255, 1691996), (1310, 1620958), (2510, 845998), (2620, 810479), (3229, 657620), (5020, 422999), (6458, 328810), (12916, 164405), (16145, 131524), (32290, 65762), (32881, 64580)]