399676875

素因数分解:

$3^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{863}}^1$

素因数の和:918

約数の個数: 80

約数和(自身を含む): 755758080

約数和(自身を除く): 356081205

約数列:

[1, 3, 5, 13, 15, 19, 25, 39, 57, 65, 75, 95, 125, 195, 247, 285, 325, 375, 475, 625, 741, 863, 975, 1235, 1425, 1625, 1875, 2375, 2589, 3705, 4315, 4875, 6175, 7125, 8125, 11219, 11875, 12945, 16397, 18525, 21575, 24375, 30875, 33657, 35625, 49191, 56095, 64725, 81985, 92625, 107875, 154375, 168285, 213161, 245955, 280475, 323625, 409925, 463125, 539375, 639483, 841425, 1065805, 1229775, 1402375, 1618125, 2049625, 3197415, 4207125, 5329025, 6148875, 7011875, 10248125, 15987075, 21035625, 26645125, 30744375, 79935375, 133225625, 399676875]

約数ペア:

[(1, 399676875), (3, 133225625), (5, 79935375), (13, 30744375), (15, 26645125), (19, 21035625), (25, 15987075), (39, 10248125), (57, 7011875), (65, 6148875), (75, 5329025), (95, 4207125), (125, 3197415), (195, 2049625), (247, 1618125), (285, 1402375), (325, 1229775), (375, 1065805), (475, 841425), (625, 639483), (741, 539375), (863, 463125), (975, 409925), (1235, 323625), (1425, 280475), (1625, 245955), (1875, 213161), (2375, 168285), (2589, 154375), (3705, 107875), (4315, 92625), (4875, 81985), (6175, 64725), (7125, 56095), (8125, 49191), (11219, 35625), (11875, 33657), (12945, 30875), (16397, 24375), (18525, 21575)]