128771840

素因数分解:

$2^8\times 5^1\times {\mathrm{37}}^1\times {\mathrm{2719}}^1$

素因数の和:2777

約数の個数: 72

約数和(自身を含む): 316901760

約数和(自身を除く): 188129920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 64, 74, 80, 128, 148, 160, 185, 256, 296, 320, 370, 592, 640, 740, 1184, 1280, 1480, 2368, 2719, 2960, 4736, 5438, 5920, 9472, 10876, 11840, 13595, 21752, 23680, 27190, 43504, 47360, 54380, 87008, 100603, 108760, 174016, 201206, 217520, 348032, 402412, 435040, 503015, 696064, 804824, 870080, 1006030, 1609648, 1740160, 2012060, 3219296, 3480320, 4024120, 6438592, 8048240, 12877184, 16096480, 25754368, 32192960, 64385920, 128771840]

約数ペア:

[(1, 128771840), (2, 64385920), (4, 32192960), (5, 25754368), (8, 16096480), (10, 12877184), (16, 8048240), (20, 6438592), (32, 4024120), (37, 3480320), (40, 3219296), (64, 2012060), (74, 1740160), (80, 1609648), (128, 1006030), (148, 870080), (160, 804824), (185, 696064), (256, 503015), (296, 435040), (320, 402412), (370, 348032), (592, 217520), (640, 201206), (740, 174016), (1184, 108760), (1280, 100603), (1480, 87008), (2368, 54380), (2719, 47360), (2960, 43504), (4736, 27190), (5438, 23680), (5920, 21752), (9472, 13595), (10876, 11840)]