1291288240

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{20101}}^1$

素因数の和:20198

約数の個数: 80

約数和(自身を含む): 3320207136

約数和(自身を除く): 2028918896

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 73, 80, 88, 110, 146, 176, 220, 292, 365, 440, 584, 730, 803, 880, 1168, 1460, 1606, 2920, 3212, 4015, 5840, 6424, 8030, 12848, 16060, 20101, 32120, 40202, 64240, 80404, 100505, 160808, 201010, 221111, 321616, 402020, 442222, 804040, 884444, 1105555, 1467373, 1608080, 1768888, 2211110, 2934746, 3537776, 4422220, 5869492, 7336865, 8844440, 11738984, 14673730, 16141103, 17688880, 23477968, 29347460, 32282206, 58694920, 64564412, 80705515, 117389840, 129128824, 161411030, 258257648, 322822060, 645644120, 1291288240]

約数ペア:

[(1, 1291288240), (2, 645644120), (4, 322822060), (5, 258257648), (8, 161411030), (10, 129128824), (11, 117389840), (16, 80705515), (20, 64564412), (22, 58694920), (40, 32282206), (44, 29347460), (55, 23477968), (73, 17688880), (80, 16141103), (88, 14673730), (110, 11738984), (146, 8844440), (176, 7336865), (220, 5869492), (292, 4422220), (365, 3537776), (440, 2934746), (584, 2211110), (730, 1768888), (803, 1608080), (880, 1467373), (1168, 1105555), (1460, 884444), (1606, 804040), (2920, 442222), (3212, 402020), (4015, 321616), (5840, 221111), (6424, 201010), (8030, 160808), (12848, 100505), (16060, 80404), (20101, 64240), (32120, 40202)]