19869225

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1$

素因数の和:218

約数の個数: 48

約数和(自身を含む): 34503744

約数和(自身を除く): 14634519

約数列:

[1, 3, 5, 15, 25, 43, 61, 75, 101, 129, 183, 215, 303, 305, 505, 645, 915, 1075, 1515, 1525, 2525, 2623, 3225, 4343, 4575, 6161, 7575, 7869, 13029, 13115, 18483, 21715, 30805, 39345, 65145, 65575, 92415, 108575, 154025, 196725, 264923, 325725, 462075, 794769, 1324615, 3973845, 6623075, 19869225]

約数ペア:

[(1, 19869225), (3, 6623075), (5, 3973845), (15, 1324615), (25, 794769), (43, 462075), (61, 325725), (75, 264923), (101, 196725), (129, 154025), (183, 108575), (215, 92415), (303, 65575), (305, 65145), (505, 39345), (645, 30805), (915, 21715), (1075, 18483), (1515, 13115), (1525, 13029), (2525, 7869), (2623, 7575), (3225, 6161), (4343, 4575)]