27280725

素因数分解:

$3^1\times 5^2\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:230

約数の個数: 48

約数和(自身を含む): 47050560

約数和(自身を除く): 19769835

約数列:

[1, 3, 5, 15, 25, 61, 67, 75, 89, 183, 201, 267, 305, 335, 445, 915, 1005, 1335, 1525, 1675, 2225, 4087, 4575, 5025, 5429, 5963, 6675, 12261, 16287, 17889, 20435, 27145, 29815, 61305, 81435, 89445, 102175, 135725, 149075, 306525, 363743, 407175, 447225, 1091229, 1818715, 5456145, 9093575, 27280725]

約数ペア:

[(1, 27280725), (3, 9093575), (5, 5456145), (15, 1818715), (25, 1091229), (61, 447225), (67, 407175), (75, 363743), (89, 306525), (183, 149075), (201, 135725), (267, 102175), (305, 89445), (335, 81435), (445, 61305), (915, 29815), (1005, 27145), (1335, 20435), (1525, 17889), (1675, 16287), (2225, 12261), (4087, 6675), (4575, 5963), (5025, 5429)]