20659072010

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{653}}^1\times {\mathrm{1249}}^1$

素因数の和:2075

約数の個数: 64

約数和(自身を含む): 39730500000

約数和(自身を除く): 19071427990

約数列:

[1, 2, 5, 10, 17, 34, 85, 149, 170, 298, 653, 745, 1249, 1306, 1490, 2498, 2533, 3265, 5066, 6245, 6530, 11101, 12490, 12665, 21233, 22202, 25330, 42466, 55505, 97297, 106165, 111010, 186101, 194594, 212330, 372202, 486485, 815597, 930505, 972970, 1631194, 1654049, 1861010, 3163717, 3308098, 4077985, 6327434, 8155970, 8270245, 13865149, 15818585, 16540490, 27730298, 31637170, 69325745, 121523953, 138651490, 243047906, 607619765, 1215239530, 2065907201, 4131814402, 10329536005, 20659072010]

約数ペア:

[(1, 20659072010), (2, 10329536005), (5, 4131814402), (10, 2065907201), (17, 1215239530), (34, 607619765), (85, 243047906), (149, 138651490), (170, 121523953), (298, 69325745), (653, 31637170), (745, 27730298), (1249, 16540490), (1306, 15818585), (1490, 13865149), (2498, 8270245), (2533, 8155970), (3265, 6327434), (5066, 4077985), (6245, 3308098), (6530, 3163717), (11101, 1861010), (12490, 1654049), (12665, 1631194), (21233, 972970), (22202, 930505), (25330, 815597), (42466, 486485), (55505, 372202), (97297, 212330), (106165, 194594), (111010, 186101)]