66813040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{521}}^1$

素因数の和:770

約数の個数: 80

約数和(自身を含む): 178649280

約数和(自身を除く): 111836240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 229, 280, 458, 521, 560, 916, 1042, 1145, 1603, 1832, 2084, 2290, 2605, 3206, 3647, 3664, 4168, 4580, 5210, 6412, 7294, 8015, 8336, 9160, 10420, 12824, 14588, 16030, 18235, 18320, 20840, 25648, 29176, 32060, 36470, 41680, 58352, 64120, 72940, 119309, 128240, 145880, 238618, 291760, 477236, 596545, 835163, 954472, 1193090, 1670326, 1908944, 2386180, 3340652, 4175815, 4772360, 6681304, 8351630, 9544720, 13362608, 16703260, 33406520, 66813040]

約数ペア:

[(1, 66813040), (2, 33406520), (4, 16703260), (5, 13362608), (7, 9544720), (8, 8351630), (10, 6681304), (14, 4772360), (16, 4175815), (20, 3340652), (28, 2386180), (35, 1908944), (40, 1670326), (56, 1193090), (70, 954472), (80, 835163), (112, 596545), (140, 477236), (229, 291760), (280, 238618), (458, 145880), (521, 128240), (560, 119309), (916, 72940), (1042, 64120), (1145, 58352), (1603, 41680), (1832, 36470), (2084, 32060), (2290, 29176), (2605, 25648), (3206, 20840), (3647, 18320), (3664, 18235), (4168, 16030), (4580, 14588), (5210, 12824), (6412, 10420), (7294, 9160), (8015, 8336)]