18888840

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{739}}^1$

素因数の和:827

約数の個数: 96

約数和(自身を含む): 62337600

約数和(自身を除く): 43448760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 71, 72, 90, 120, 142, 180, 213, 284, 355, 360, 426, 568, 639, 710, 739, 852, 1065, 1278, 1420, 1478, 1704, 2130, 2217, 2556, 2840, 2956, 3195, 3695, 4260, 4434, 5112, 5912, 6390, 6651, 7390, 8520, 8868, 11085, 12780, 13302, 14780, 17736, 22170, 25560, 26604, 29560, 33255, 44340, 52469, 53208, 66510, 88680, 104938, 133020, 157407, 209876, 262345, 266040, 314814, 419752, 472221, 524690, 629628, 787035, 944442, 1049380, 1259256, 1574070, 1888884, 2098760, 2361105, 3148140, 3777768, 4722210, 6296280, 9444420, 18888840]

約数ペア:

[(1, 18888840), (2, 9444420), (3, 6296280), (4, 4722210), (5, 3777768), (6, 3148140), (8, 2361105), (9, 2098760), (10, 1888884), (12, 1574070), (15, 1259256), (18, 1049380), (20, 944442), (24, 787035), (30, 629628), (36, 524690), (40, 472221), (45, 419752), (60, 314814), (71, 266040), (72, 262345), (90, 209876), (120, 157407), (142, 133020), (180, 104938), (213, 88680), (284, 66510), (355, 53208), (360, 52469), (426, 44340), (568, 33255), (639, 29560), (710, 26604), (739, 25560), (852, 22170), (1065, 17736), (1278, 14780), (1420, 13302), (1478, 12780), (1704, 11085), (2130, 8868), (2217, 8520), (2556, 7390), (2840, 6651), (2956, 6390), (3195, 5912), (3695, 5112), (4260, 4434)]