2758176640

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139021}}^1$

素因数の和:139071

約数の個数: 64

約数和(自身を含む): 6806517120

約数和(自身を除く): 4048340480

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, 1984, 2480, 3968, 4960, 9920, 19840, 139021, 278042, 556084, 695105, 1112168, 1390210, 2224336, 2780420, 4309651, 4448672, 5560840, 8619302, 8897344, 11121680, 17238604, 17794688, 21548255, 22243360, 34477208, 43096510, 44486720, 68954416, 86193020, 88973440, 137908832, 172386040, 275817664, 344772080, 551635328, 689544160, 1379088320, 2758176640]

約数ペア:

[(1, 2758176640), (2, 1379088320), (4, 689544160), (5, 551635328), (8, 344772080), (10, 275817664), (16, 172386040), (20, 137908832), (31, 88973440), (32, 86193020), (40, 68954416), (62, 44486720), (64, 43096510), (80, 34477208), (124, 22243360), (128, 21548255), (155, 17794688), (160, 17238604), (248, 11121680), (310, 8897344), (320, 8619302), (496, 5560840), (620, 4448672), (640, 4309651), (992, 2780420), (1240, 2224336), (1984, 1390210), (2480, 1112168), (3968, 695105), (4960, 556084), (9920, 278042), (19840, 139021)]