18945075

素因数分解:

$3^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1$

素因数の和:216

約数の個数: 48

約数和(自身を含む): 32935392

約数和(自身を除く): 13990317

約数列:

[1, 3, 5, 15, 25, 41, 61, 75, 101, 123, 183, 205, 303, 305, 505, 615, 915, 1025, 1515, 1525, 2501, 2525, 3075, 4141, 4575, 6161, 7503, 7575, 12423, 12505, 18483, 20705, 30805, 37515, 62115, 62525, 92415, 103525, 154025, 187575, 252601, 310575, 462075, 757803, 1263005, 3789015, 6315025, 18945075]

約数ペア:

[(1, 18945075), (3, 6315025), (5, 3789015), (15, 1263005), (25, 757803), (41, 462075), (61, 310575), (75, 252601), (101, 187575), (123, 154025), (183, 103525), (205, 92415), (303, 62525), (305, 62115), (505, 37515), (615, 30805), (915, 20705), (1025, 18483), (1515, 12505), (1525, 12423), (2501, 7575), (2525, 7503), (3075, 6161), (4141, 4575)]