20512487980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{613}}^1\times {\mathrm{98419}}^1$

素因数の和:99058

約数の個数: 48

約数和(自身を含む): 45684989280

約数和(自身を除く): 25172501300

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 613, 1226, 2452, 3065, 6130, 10421, 12260, 20842, 41684, 52105, 98419, 104210, 196838, 208420, 393676, 492095, 984190, 1673123, 1968380, 3346246, 6692492, 8365615, 16731230, 33462460, 60330847, 120661694, 241323388, 301654235, 603308470, 1025624399, 1206616940, 2051248798, 4102497596, 5128121995, 10256243990, 20512487980]

約数ペア:

[(1, 20512487980), (2, 10256243990), (4, 5128121995), (5, 4102497596), (10, 2051248798), (17, 1206616940), (20, 1025624399), (34, 603308470), (68, 301654235), (85, 241323388), (170, 120661694), (340, 60330847), (613, 33462460), (1226, 16731230), (2452, 8365615), (3065, 6692492), (6130, 3346246), (10421, 1968380), (12260, 1673123), (20842, 984190), (41684, 492095), (52105, 393676), (98419, 208420), (104210, 196838)]