20145746640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{4937683}}^1$

素因数の和:4937716

約数の個数: 80

約数和(自身を含む): 66125464128

約数和(自身を除く): 45979717488

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 60, 68, 80, 85, 102, 120, 136, 170, 204, 240, 255, 272, 340, 408, 510, 680, 816, 1020, 1360, 2040, 4080, 4937683, 9875366, 14813049, 19750732, 24688415, 29626098, 39501464, 49376830, 59252196, 74065245, 79002928, 83940611, 98753660, 118504392, 148130490, 167881222, 197507320, 237008784, 251821833, 296260980, 335762444, 395014640, 419703055, 503643666, 592521960, 671524888, 839406110, 1007287332, 1185043920, 1259109165, 1343049776, 1678812220, 2014574664, 2518218330, 3357624440, 4029149328, 5036436660, 6715248880, 10072873320, 20145746640]

約数ペア:

[(1, 20145746640), (2, 10072873320), (3, 6715248880), (4, 5036436660), (5, 4029149328), (6, 3357624440), (8, 2518218330), (10, 2014574664), (12, 1678812220), (15, 1343049776), (16, 1259109165), (17, 1185043920), (20, 1007287332), (24, 839406110), (30, 671524888), (34, 592521960), (40, 503643666), (48, 419703055), (51, 395014640), (60, 335762444), (68, 296260980), (80, 251821833), (85, 237008784), (102, 197507320), (120, 167881222), (136, 148130490), (170, 118504392), (204, 98753660), (240, 83940611), (255, 79002928), (272, 74065245), (340, 59252196), (408, 49376830), (510, 39501464), (680, 29626098), (816, 24688415), (1020, 19750732), (1360, 14813049), (2040, 9875366), (4080, 4937683)]