28190340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{787}}^1$

素因数の和:1001

約数の個数: 72

約数和(自身を含む): 86049600

約数和(自身を除く): 57859260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 199, 398, 597, 787, 796, 995, 1194, 1574, 1791, 1990, 2361, 2388, 2985, 3148, 3582, 3935, 3980, 4722, 5970, 7083, 7164, 7870, 8955, 9444, 11805, 11940, 14166, 15740, 17910, 23610, 28332, 35415, 35820, 47220, 70830, 141660, 156613, 313226, 469839, 626452, 783065, 939678, 1409517, 1566130, 1879356, 2349195, 2819034, 3132260, 4698390, 5638068, 7047585, 9396780, 14095170, 28190340]

約数ペア:

[(1, 28190340), (2, 14095170), (3, 9396780), (4, 7047585), (5, 5638068), (6, 4698390), (9, 3132260), (10, 2819034), (12, 2349195), (15, 1879356), (18, 1566130), (20, 1409517), (30, 939678), (36, 783065), (45, 626452), (60, 469839), (90, 313226), (180, 156613), (199, 141660), (398, 70830), (597, 47220), (787, 35820), (796, 35415), (995, 28332), (1194, 23610), (1574, 17910), (1791, 15740), (1990, 14166), (2361, 11940), (2388, 11805), (2985, 9444), (3148, 8955), (3582, 7870), (3935, 7164), (3980, 7083), (4722, 5970)]