68439640

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{353}}^1$

素因数の和:532

約数の個数: 64

約数和(自身を含む): 159809760

約数和(自身を除く): 91370120

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 131, 148, 185, 262, 296, 353, 370, 524, 655, 706, 740, 1048, 1310, 1412, 1480, 1765, 2620, 2824, 3530, 4847, 5240, 7060, 9694, 13061, 14120, 19388, 24235, 26122, 38776, 46243, 48470, 52244, 65305, 92486, 96940, 104488, 130610, 184972, 193880, 231215, 261220, 369944, 462430, 522440, 924860, 1710991, 1849720, 3421982, 6843964, 8554955, 13687928, 17109910, 34219820, 68439640]

約数ペア:

[(1, 68439640), (2, 34219820), (4, 17109910), (5, 13687928), (8, 8554955), (10, 6843964), (20, 3421982), (37, 1849720), (40, 1710991), (74, 924860), (131, 522440), (148, 462430), (185, 369944), (262, 261220), (296, 231215), (353, 193880), (370, 184972), (524, 130610), (655, 104488), (706, 96940), (740, 92486), (1048, 65305), (1310, 52244), (1412, 48470), (1480, 46243), (1765, 38776), (2620, 26122), (2824, 24235), (3530, 19388), (4847, 14120), (5240, 13061), (7060, 9694)]