90270380

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{199}}^1\times {\mathrm{613}}^1$

素因数の和:858

約数の個数: 48

約数和(自身を含む): 195988800

約数和(自身を除く): 105718420

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 199, 370, 398, 613, 740, 796, 995, 1226, 1990, 2452, 3065, 3980, 6130, 7363, 12260, 14726, 22681, 29452, 36815, 45362, 73630, 90724, 113405, 121987, 147260, 226810, 243974, 453620, 487948, 609935, 1219870, 2439740, 4513519, 9027038, 18054076, 22567595, 45135190, 90270380]

約数ペア:

[(1, 90270380), (2, 45135190), (4, 22567595), (5, 18054076), (10, 9027038), (20, 4513519), (37, 2439740), (74, 1219870), (148, 609935), (185, 487948), (199, 453620), (370, 243974), (398, 226810), (613, 147260), (740, 121987), (796, 113405), (995, 90724), (1226, 73630), (1990, 45362), (2452, 36815), (3065, 29452), (3980, 22681), (6130, 14726), (7363, 12260)]