28377515

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1$

素因数の和:251

約数の個数: 32

約数和(自身を含む): 37601280

約数和(自身を除く): 9223765

約数列:

[1, 5, 23, 29, 67, 115, 127, 145, 335, 635, 667, 1541, 1943, 2921, 3335, 3683, 7705, 8509, 9715, 14605, 18415, 42545, 44689, 84709, 195707, 223445, 246761, 423545, 978535, 1233805, 5675503, 28377515]

約数ペア:

[(1, 28377515), (5, 5675503), (23, 1233805), (29, 978535), (67, 423545), (115, 246761), (127, 223445), (145, 195707), (335, 84709), (635, 44689), (667, 42545), (1541, 18415), (1943, 14605), (2921, 9715), (3335, 8509), (3683, 7705)]