78382720

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9421}}^1$

素因数の和:9453

約数の個数: 64

約数和(自身を含む): 201819240

約数和(自身を除く): 123436520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 260, 320, 416, 520, 640, 832, 1040, 1664, 2080, 4160, 8320, 9421, 18842, 37684, 47105, 75368, 94210, 122473, 150736, 188420, 244946, 301472, 376840, 489892, 602944, 612365, 753680, 979784, 1205888, 1224730, 1507360, 1959568, 2449460, 3014720, 3919136, 4898920, 6029440, 7838272, 9797840, 15676544, 19595680, 39191360, 78382720]

約数ペア:

[(1, 78382720), (2, 39191360), (4, 19595680), (5, 15676544), (8, 9797840), (10, 7838272), (13, 6029440), (16, 4898920), (20, 3919136), (26, 3014720), (32, 2449460), (40, 1959568), (52, 1507360), (64, 1224730), (65, 1205888), (80, 979784), (104, 753680), (128, 612365), (130, 602944), (160, 489892), (208, 376840), (260, 301472), (320, 244946), (416, 188420), (520, 150736), (640, 122473), (832, 94210), (1040, 75368), (1664, 47105), (2080, 37684), (4160, 18842), (8320, 9421)]