205006720

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{10333}}^1$

素因数の和:10383

約数の個数: 64

約数和(自身を含む): 505952640

約数和(自身を除く): 300945920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3968, 4960, 9920, 10333, 19840, 20666, 41332, 51665, 82664, 103330, 165328, 206660, 320323, 330656, 413320, 640646, 661312, 826640, 1281292, 1322624, 1601615, 1653280, 2562584, 3203230, 3306560, 5125168, 6406460, 6613120, 10250336, 12812920, 20500672, 25625840, 41001344, 51251680, 102503360, 205006720]

約数ペア:

[(1, 205006720), (2, 102503360), (4, 51251680), (5, 41001344), (8, 25625840), (10, 20500672), (16, 12812920), (20, 10250336), (31, 6613120), (32, 6406460), (40, 5125168), (62, 3306560), (64, 3203230), (80, 2562584), (124, 1653280), (128, 1601615), (155, 1322624), (160, 1281292), (248, 826640), (310, 661312), (320, 640646), (496, 413320), (620, 330656), (640, 320323), (992, 206660), (1240, 165328), (1984, 103330), (2480, 82664), (3968, 51665), (4960, 41332), (9920, 20666), (10333, 19840)]