64385920

素因数分解:

$2^7\times 5^1\times {\mathrm{37}}^1\times {\mathrm{2719}}^1$

素因数の和:2775

約数の個数: 64

約数和(自身を含む): 158140800

約数和(自身を除く): 93754880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 64, 74, 80, 128, 148, 160, 185, 296, 320, 370, 592, 640, 740, 1184, 1480, 2368, 2719, 2960, 4736, 5438, 5920, 10876, 11840, 13595, 21752, 23680, 27190, 43504, 54380, 87008, 100603, 108760, 174016, 201206, 217520, 348032, 402412, 435040, 503015, 804824, 870080, 1006030, 1609648, 1740160, 2012060, 3219296, 4024120, 6438592, 8048240, 12877184, 16096480, 32192960, 64385920]

約数ペア:

[(1, 64385920), (2, 32192960), (4, 16096480), (5, 12877184), (8, 8048240), (10, 6438592), (16, 4024120), (20, 3219296), (32, 2012060), (37, 1740160), (40, 1609648), (64, 1006030), (74, 870080), (80, 804824), (128, 503015), (148, 435040), (160, 402412), (185, 348032), (296, 217520), (320, 201206), (370, 174016), (592, 108760), (640, 100603), (740, 87008), (1184, 54380), (1480, 43504), (2368, 27190), (2719, 23680), (2960, 21752), (4736, 13595), (5438, 11840), (5920, 10876)]