25454720

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1283}}^1$

素因数の和:1333

約数の個数: 64

約数和(自身を含む): 62864640

約数和(自身を除く): 37409920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1283, 1984, 2480, 2566, 3968, 4960, 5132, 6415, 9920, 10264, 12830, 19840, 20528, 25660, 39773, 41056, 51320, 79546, 82112, 102640, 159092, 164224, 198865, 205280, 318184, 397730, 410560, 636368, 795460, 821120, 1272736, 1590920, 2545472, 3181840, 5090944, 6363680, 12727360, 25454720]

約数ペア:

[(1, 25454720), (2, 12727360), (4, 6363680), (5, 5090944), (8, 3181840), (10, 2545472), (16, 1590920), (20, 1272736), (31, 821120), (32, 795460), (40, 636368), (62, 410560), (64, 397730), (80, 318184), (124, 205280), (128, 198865), (155, 164224), (160, 159092), (248, 102640), (310, 82112), (320, 79546), (496, 51320), (620, 41056), (640, 39773), (992, 25660), (1240, 20528), (1283, 19840), (1984, 12830), (2480, 10264), (2566, 9920), (3968, 6415), (4960, 5132)]