64504720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{503}}^1$

素因数の和:752

約数の個数: 80

約数和(自身を含む): 172488960

約数和(自身を除く): 107984240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 229, 280, 458, 503, 560, 916, 1006, 1145, 1603, 1832, 2012, 2290, 2515, 3206, 3521, 3664, 4024, 4580, 5030, 6412, 7042, 8015, 8048, 9160, 10060, 12824, 14084, 16030, 17605, 18320, 20120, 25648, 28168, 32060, 35210, 40240, 56336, 64120, 70420, 115187, 128240, 140840, 230374, 281680, 460748, 575935, 806309, 921496, 1151870, 1612618, 1842992, 2303740, 3225236, 4031545, 4607480, 6450472, 8063090, 9214960, 12900944, 16126180, 32252360, 64504720]

約数ペア:

[(1, 64504720), (2, 32252360), (4, 16126180), (5, 12900944), (7, 9214960), (8, 8063090), (10, 6450472), (14, 4607480), (16, 4031545), (20, 3225236), (28, 2303740), (35, 1842992), (40, 1612618), (56, 1151870), (70, 921496), (80, 806309), (112, 575935), (140, 460748), (229, 281680), (280, 230374), (458, 140840), (503, 128240), (560, 115187), (916, 70420), (1006, 64120), (1145, 56336), (1603, 40240), (1832, 35210), (2012, 32060), (2290, 28168), (2515, 25648), (3206, 20120), (3521, 18320), (3664, 17605), (4024, 16030), (4580, 14084), (5030, 12824), (6412, 10060), (7042, 9160), (8015, 8048)]