78548120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:217

約数の個数: 128

約数和(自身を含む): 211507200

約数和(自身を除く): 132959080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 53, 56, 67, 70, 79, 106, 134, 140, 158, 212, 265, 268, 280, 316, 335, 371, 395, 424, 469, 530, 536, 553, 632, 670, 742, 790, 938, 1060, 1106, 1340, 1484, 1580, 1855, 1876, 2120, 2212, 2345, 2680, 2765, 2968, 3160, 3551, 3710, 3752, 4187, 4424, 4690, 5293, 5530, 7102, 7420, 8374, 9380, 10586, 11060, 14204, 14840, 16748, 17755, 18760, 20935, 21172, 22120, 24857, 26465, 28408, 29309, 33496, 35510, 37051, 41870, 42344, 49714, 52930, 58618, 71020, 74102, 83740, 99428, 105860, 117236, 124285, 142040, 146545, 148204, 167480, 185255, 198856, 211720, 234472, 248570, 280529, 293090, 296408, 370510, 497140, 561058, 586180, 741020, 994280, 1122116, 1172360, 1402645, 1482040, 1963703, 2244232, 2805290, 3927406, 5610580, 7854812, 9818515, 11221160, 15709624, 19637030, 39274060, 78548120]

約数ペア:

[(1, 78548120), (2, 39274060), (4, 19637030), (5, 15709624), (7, 11221160), (8, 9818515), (10, 7854812), (14, 5610580), (20, 3927406), (28, 2805290), (35, 2244232), (40, 1963703), (53, 1482040), (56, 1402645), (67, 1172360), (70, 1122116), (79, 994280), (106, 741020), (134, 586180), (140, 561058), (158, 497140), (212, 370510), (265, 296408), (268, 293090), (280, 280529), (316, 248570), (335, 234472), (371, 211720), (395, 198856), (424, 185255), (469, 167480), (530, 148204), (536, 146545), (553, 142040), (632, 124285), (670, 117236), (742, 105860), (790, 99428), (938, 83740), (1060, 74102), (1106, 71020), (1340, 58618), (1484, 52930), (1580, 49714), (1855, 42344), (1876, 41870), (2120, 37051), (2212, 35510), (2345, 33496), (2680, 29309), (2765, 28408), (2968, 26465), (3160, 24857), (3551, 22120), (3710, 21172), (3752, 20935), (4187, 18760), (4424, 17755), (4690, 16748), (5293, 14840), (5530, 14204), (7102, 11060), (7420, 10586), (8374, 9380)]