18597680

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:214

約数の個数: 80

約数和(自身を含む): 45574464

約数和(自身を除く): 26976784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 61, 74, 80, 103, 122, 148, 185, 206, 244, 296, 305, 370, 412, 488, 515, 592, 610, 740, 824, 976, 1030, 1220, 1480, 1648, 2060, 2257, 2440, 2960, 3811, 4120, 4514, 4880, 6283, 7622, 8240, 9028, 11285, 12566, 15244, 18056, 19055, 22570, 25132, 30488, 31415, 36112, 38110, 45140, 50264, 60976, 62830, 76220, 90280, 100528, 125660, 152440, 180560, 232471, 251320, 304880, 464942, 502640, 929884, 1162355, 1859768, 2324710, 3719536, 4649420, 9298840, 18597680]

約数ペア:

[(1, 18597680), (2, 9298840), (4, 4649420), (5, 3719536), (8, 2324710), (10, 1859768), (16, 1162355), (20, 929884), (37, 502640), (40, 464942), (61, 304880), (74, 251320), (80, 232471), (103, 180560), (122, 152440), (148, 125660), (185, 100528), (206, 90280), (244, 76220), (296, 62830), (305, 60976), (370, 50264), (412, 45140), (488, 38110), (515, 36112), (592, 31415), (610, 30488), (740, 25132), (824, 22570), (976, 19055), (1030, 18056), (1220, 15244), (1480, 12566), (1648, 11285), (2060, 9028), (2257, 8240), (2440, 7622), (2960, 6283), (3811, 4880), (4120, 4514)]