15678080020

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{173}}^1\times {\mathrm{27799}}^1$

素因数の和:28144

約数の個数: 48

約数和(自身を含む): 33318633600

約数和(自身を除く): 17640553580

約数列:

[1, 2, 4, 5, 10, 20, 163, 173, 326, 346, 652, 692, 815, 865, 1630, 1730, 3260, 3460, 27799, 28199, 55598, 56398, 111196, 112796, 138995, 140995, 277990, 281990, 555980, 563980, 4531237, 4809227, 9062474, 9618454, 18124948, 19236908, 22656185, 24046135, 45312370, 48092270, 90624740, 96184540, 783904001, 1567808002, 3135616004, 3919520005, 7839040010, 15678080020]

約数ペア:

[(1, 15678080020), (2, 7839040010), (4, 3919520005), (5, 3135616004), (10, 1567808002), (20, 783904001), (163, 96184540), (173, 90624740), (326, 48092270), (346, 45312370), (652, 24046135), (692, 22656185), (815, 19236908), (865, 18124948), (1630, 9618454), (1730, 9062474), (3260, 4809227), (3460, 4531237), (27799, 563980), (28199, 555980), (55598, 281990), (56398, 277990), (111196, 140995), (112796, 138995)]