81416320

素因数分解:

$2^7\times 5^1\times {\mathrm{23}}^1\times {\mathrm{5531}}^1$

素因数の和:5573

約数の個数: 64

約数和(自身を含む): 203135040

約数和(自身を除く): 121718720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 160, 184, 230, 320, 368, 460, 640, 736, 920, 1472, 1840, 2944, 3680, 5531, 7360, 11062, 14720, 22124, 27655, 44248, 55310, 88496, 110620, 127213, 176992, 221240, 254426, 353984, 442480, 508852, 636065, 707968, 884960, 1017704, 1272130, 1769920, 2035408, 2544260, 3539840, 4070816, 5088520, 8141632, 10177040, 16283264, 20354080, 40708160, 81416320]

約数ペア:

[(1, 81416320), (2, 40708160), (4, 20354080), (5, 16283264), (8, 10177040), (10, 8141632), (16, 5088520), (20, 4070816), (23, 3539840), (32, 2544260), (40, 2035408), (46, 1769920), (64, 1272130), (80, 1017704), (92, 884960), (115, 707968), (128, 636065), (160, 508852), (184, 442480), (230, 353984), (320, 254426), (368, 221240), (460, 176992), (640, 127213), (736, 110620), (920, 88496), (1472, 55310), (1840, 44248), (2944, 27655), (3680, 22124), (5531, 14720), (7360, 11062)]