20458450516

素因数分解:

$2^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{199}}^1\times {\mathrm{36353}}^1$

素因数の和:36664

約数の個数: 48

約数和(自身を含む): 41530809600

約数和(自身を除く): 21072359084

約数列:

[1, 2, 4, 7, 14, 28, 101, 199, 202, 398, 404, 707, 796, 1393, 1414, 2786, 2828, 5572, 20099, 36353, 40198, 72706, 80396, 140693, 145412, 254471, 281386, 508942, 562772, 1017884, 3671653, 7234247, 7343306, 14468494, 14686612, 25701571, 28936988, 50639729, 51403142, 101279458, 102806284, 202558916, 730658947, 1461317894, 2922635788, 5114612629, 10229225258, 20458450516]

約数ペア:

[(1, 20458450516), (2, 10229225258), (4, 5114612629), (7, 2922635788), (14, 1461317894), (28, 730658947), (101, 202558916), (199, 102806284), (202, 101279458), (398, 51403142), (404, 50639729), (707, 28936988), (796, 25701571), (1393, 14686612), (1414, 14468494), (2786, 7343306), (2828, 7234247), (5572, 3671653), (20099, 1017884), (36353, 562772), (40198, 508942), (72706, 281386), (80396, 254471), (140693, 145412)]