68581120

素因数分解:

$2^8\times 5^1\times {\mathrm{131}}^1\times {\mathrm{409}}^1$

素因数の和:561

約数の個数: 72

約数和(自身を含む): 165931920

約数和(自身を除く): 97350800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 131, 160, 256, 262, 320, 409, 524, 640, 655, 818, 1048, 1280, 1310, 1636, 2045, 2096, 2620, 3272, 4090, 4192, 5240, 6544, 8180, 8384, 10480, 13088, 16360, 16768, 20960, 26176, 32720, 33536, 41920, 52352, 53579, 65440, 83840, 104704, 107158, 130880, 167680, 214316, 261760, 267895, 428632, 523520, 535790, 857264, 1071580, 1714528, 2143160, 3429056, 4286320, 6858112, 8572640, 13716224, 17145280, 34290560, 68581120]

約数ペア:

[(1, 68581120), (2, 34290560), (4, 17145280), (5, 13716224), (8, 8572640), (10, 6858112), (16, 4286320), (20, 3429056), (32, 2143160), (40, 1714528), (64, 1071580), (80, 857264), (128, 535790), (131, 523520), (160, 428632), (256, 267895), (262, 261760), (320, 214316), (409, 167680), (524, 130880), (640, 107158), (655, 104704), (818, 83840), (1048, 65440), (1280, 53579), (1310, 52352), (1636, 41920), (2045, 33536), (2096, 32720), (2620, 26176), (3272, 20960), (4090, 16768), (4192, 16360), (5240, 13088), (6544, 10480), (8180, 8384)]