19821640

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{227}}^1$

素因数の和:334

約数の個数: 64

約数和(自身を含む): 46785600

約数和(自身を除く): 26963960

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 59, 74, 118, 148, 185, 227, 236, 295, 296, 370, 454, 472, 590, 740, 908, 1135, 1180, 1480, 1816, 2183, 2270, 2360, 4366, 4540, 8399, 8732, 9080, 10915, 13393, 16798, 17464, 21830, 26786, 33596, 41995, 43660, 53572, 66965, 67192, 83990, 87320, 107144, 133930, 167980, 267860, 335960, 495541, 535720, 991082, 1982164, 2477705, 3964328, 4955410, 9910820, 19821640]

約数ペア:

[(1, 19821640), (2, 9910820), (4, 4955410), (5, 3964328), (8, 2477705), (10, 1982164), (20, 991082), (37, 535720), (40, 495541), (59, 335960), (74, 267860), (118, 167980), (148, 133930), (185, 107144), (227, 87320), (236, 83990), (295, 67192), (296, 66965), (370, 53572), (454, 43660), (472, 41995), (590, 33596), (740, 26786), (908, 21830), (1135, 17464), (1180, 16798), (1480, 13393), (1816, 10915), (2183, 9080), (2270, 8732), (2360, 8399), (4366, 4540)]