161916920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^2\times {\mathrm{73}}^1$

素因数の和:237

約数の個数: 96

約数和(自身を含む): 408630960

約数和(自身を除く): 246714040

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 71, 73, 88, 110, 142, 146, 220, 284, 292, 355, 365, 440, 568, 584, 710, 730, 781, 803, 1420, 1460, 1562, 1606, 2840, 2920, 3124, 3212, 3905, 4015, 5041, 5183, 6248, 6424, 7810, 8030, 10082, 10366, 15620, 16060, 20164, 20732, 25205, 25915, 31240, 32120, 40328, 41464, 50410, 51830, 55451, 57013, 100820, 103660, 110902, 114026, 201640, 207320, 221804, 228052, 277255, 285065, 367993, 443608, 456104, 554510, 570130, 735986, 1109020, 1140260, 1471972, 1839965, 2218040, 2280520, 2943944, 3679930, 4047923, 7359860, 8095846, 14719720, 16191692, 20239615, 32383384, 40479230, 80958460, 161916920]

約数ペア:

[(1, 161916920), (2, 80958460), (4, 40479230), (5, 32383384), (8, 20239615), (10, 16191692), (11, 14719720), (20, 8095846), (22, 7359860), (40, 4047923), (44, 3679930), (55, 2943944), (71, 2280520), (73, 2218040), (88, 1839965), (110, 1471972), (142, 1140260), (146, 1109020), (220, 735986), (284, 570130), (292, 554510), (355, 456104), (365, 443608), (440, 367993), (568, 285065), (584, 277255), (710, 228052), (730, 221804), (781, 207320), (803, 201640), (1420, 114026), (1460, 110902), (1562, 103660), (1606, 100820), (2840, 57013), (2920, 55451), (3124, 51830), (3212, 50410), (3905, 41464), (4015, 40328), (5041, 32120), (5183, 31240), (6248, 25915), (6424, 25205), (7810, 20732), (8030, 20164), (10082, 16060), (10366, 15620)]