78542720

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{7219}}^1$

素因数の和:7255

約数の個数: 64

約数和(自身を含む): 198838800

約数和(自身を除く): 120296080

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 272, 320, 340, 544, 640, 680, 1088, 1360, 2176, 2720, 5440, 7219, 10880, 14438, 28876, 36095, 57752, 72190, 115504, 122723, 144380, 231008, 245446, 288760, 462016, 490892, 577520, 613615, 924032, 981784, 1155040, 1227230, 1963568, 2310080, 2454460, 3927136, 4620160, 4908920, 7854272, 9817840, 15708544, 19635680, 39271360, 78542720]

約数ペア:

[(1, 78542720), (2, 39271360), (4, 19635680), (5, 15708544), (8, 9817840), (10, 7854272), (16, 4908920), (17, 4620160), (20, 3927136), (32, 2454460), (34, 2310080), (40, 1963568), (64, 1227230), (68, 1155040), (80, 981784), (85, 924032), (128, 613615), (136, 577520), (160, 490892), (170, 462016), (272, 288760), (320, 245446), (340, 231008), (544, 144380), (640, 122723), (680, 115504), (1088, 72190), (1360, 57752), (2176, 36095), (2720, 28876), (5440, 14438), (7219, 10880)]