164807720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{733}}^1$

素因数の和:835

約数の個数: 128

約数和(自身を含む): 469290240

約数和(自身を除く): 304482520

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 73, 77, 88, 110, 140, 146, 154, 220, 280, 292, 308, 365, 385, 440, 511, 584, 616, 730, 733, 770, 803, 1022, 1460, 1466, 1540, 1606, 2044, 2555, 2920, 2932, 3080, 3212, 3665, 4015, 4088, 5110, 5131, 5621, 5864, 6424, 7330, 8030, 8063, 10220, 10262, 11242, 14660, 16060, 16126, 20440, 20524, 22484, 25655, 28105, 29320, 32120, 32252, 40315, 41048, 44968, 51310, 53509, 56210, 56441, 64504, 80630, 102620, 107018, 112420, 112882, 161260, 205240, 214036, 224840, 225764, 267545, 282205, 322520, 374563, 428072, 451528, 535090, 564410, 588599, 749126, 1070180, 1128820, 1177198, 1498252, 1872815, 2140360, 2257640, 2354396, 2942995, 2996504, 3745630, 4120193, 4708792, 5885990, 7491260, 8240386, 11771980, 14982520, 16480772, 20600965, 23543960, 32961544, 41201930, 82403860, 164807720]

約数ペア:

[(1, 164807720), (2, 82403860), (4, 41201930), (5, 32961544), (7, 23543960), (8, 20600965), (10, 16480772), (11, 14982520), (14, 11771980), (20, 8240386), (22, 7491260), (28, 5885990), (35, 4708792), (40, 4120193), (44, 3745630), (55, 2996504), (56, 2942995), (70, 2354396), (73, 2257640), (77, 2140360), (88, 1872815), (110, 1498252), (140, 1177198), (146, 1128820), (154, 1070180), (220, 749126), (280, 588599), (292, 564410), (308, 535090), (365, 451528), (385, 428072), (440, 374563), (511, 322520), (584, 282205), (616, 267545), (730, 225764), (733, 224840), (770, 214036), (803, 205240), (1022, 161260), (1460, 112882), (1466, 112420), (1540, 107018), (1606, 102620), (2044, 80630), (2555, 64504), (2920, 56441), (2932, 56210), (3080, 53509), (3212, 51310), (3665, 44968), (4015, 41048), (4088, 40315), (5110, 32252), (5131, 32120), (5621, 29320), (5864, 28105), (6424, 25655), (7330, 22484), (8030, 20524), (8063, 20440), (10220, 16126), (10262, 16060), (11242, 14660)]