20913510

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{227}}^1$

素因数の和:357

約数の個数: 64

約数和(自身を含む): 52399872

約数和(自身を除く): 31486362

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 37, 74, 83, 111, 166, 185, 222, 227, 249, 370, 415, 454, 498, 555, 681, 830, 1110, 1135, 1245, 1362, 2270, 2490, 3071, 3405, 6142, 6810, 8399, 9213, 15355, 16798, 18426, 18841, 25197, 30710, 37682, 41995, 46065, 50394, 56523, 83990, 92130, 94205, 113046, 125985, 188410, 251970, 282615, 565230, 697117, 1394234, 2091351, 3485585, 4182702, 6971170, 10456755, 20913510]

約数ペア:

[(1, 20913510), (2, 10456755), (3, 6971170), (5, 4182702), (6, 3485585), (10, 2091351), (15, 1394234), (30, 697117), (37, 565230), (74, 282615), (83, 251970), (111, 188410), (166, 125985), (185, 113046), (222, 94205), (227, 92130), (249, 83990), (370, 56523), (415, 50394), (454, 46065), (498, 41995), (555, 37682), (681, 30710), (830, 25197), (1110, 18841), (1135, 18426), (1245, 16798), (1362, 15355), (2270, 9213), (2490, 8399), (3071, 6810), (3405, 6142)]