19764080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1217}}^1$

素因数の和:1266

約数の個数: 80

約数和(自身を含む): 54371520

約数和(自身を除く): 34607440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 35, 40, 56, 58, 70, 80, 112, 116, 140, 145, 203, 232, 280, 290, 406, 464, 560, 580, 812, 1015, 1160, 1217, 1624, 2030, 2320, 2434, 3248, 4060, 4868, 6085, 8120, 8519, 9736, 12170, 16240, 17038, 19472, 24340, 34076, 35293, 42595, 48680, 68152, 70586, 85190, 97360, 136304, 141172, 170380, 176465, 247051, 282344, 340760, 352930, 494102, 564688, 681520, 705860, 988204, 1235255, 1411720, 1976408, 2470510, 2823440, 3952816, 4941020, 9882040, 19764080]

約数ペア:

[(1, 19764080), (2, 9882040), (4, 4941020), (5, 3952816), (7, 2823440), (8, 2470510), (10, 1976408), (14, 1411720), (16, 1235255), (20, 988204), (28, 705860), (29, 681520), (35, 564688), (40, 494102), (56, 352930), (58, 340760), (70, 282344), (80, 247051), (112, 176465), (116, 170380), (140, 141172), (145, 136304), (203, 97360), (232, 85190), (280, 70586), (290, 68152), (406, 48680), (464, 42595), (560, 35293), (580, 34076), (812, 24340), (1015, 19472), (1160, 17038), (1217, 16240), (1624, 12170), (2030, 9736), (2320, 8519), (2434, 8120), (3248, 6085), (4060, 4868)]