205532480

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20719}}^1$

素因数の和:20767

約数の個数: 56

約数和(自身を含む): 505236480

約数和(自身を除く): 299704000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1984, 2480, 4960, 9920, 20719, 41438, 82876, 103595, 165752, 207190, 331504, 414380, 642289, 663008, 828760, 1284578, 1326016, 1657520, 2569156, 3211445, 3315040, 5138312, 6422890, 6630080, 10276624, 12845780, 20553248, 25691560, 41106496, 51383120, 102766240, 205532480]

約数ペア:

[(1, 205532480), (2, 102766240), (4, 51383120), (5, 41106496), (8, 25691560), (10, 20553248), (16, 12845780), (20, 10276624), (31, 6630080), (32, 6422890), (40, 5138312), (62, 3315040), (64, 3211445), (80, 2569156), (124, 1657520), (155, 1326016), (160, 1284578), (248, 828760), (310, 663008), (320, 642289), (496, 414380), (620, 331504), (992, 207190), (1240, 165752), (1984, 103595), (2480, 82876), (4960, 41438), (9920, 20719)]