1776420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:225

約数の個数: 72

約数和(自身を含む): 5503680

約数和(自身を除く): 3727260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 139, 142, 180, 213, 278, 284, 355, 417, 426, 556, 639, 695, 710, 834, 852, 1065, 1251, 1278, 1390, 1420, 1668, 2085, 2130, 2502, 2556, 2780, 3195, 4170, 4260, 5004, 6255, 6390, 8340, 9869, 12510, 12780, 19738, 25020, 29607, 39476, 49345, 59214, 88821, 98690, 118428, 148035, 177642, 197380, 296070, 355284, 444105, 592140, 888210, 1776420]

約数ペア:

[(1, 1776420), (2, 888210), (3, 592140), (4, 444105), (5, 355284), (6, 296070), (9, 197380), (10, 177642), (12, 148035), (15, 118428), (18, 98690), (20, 88821), (30, 59214), (36, 49345), (45, 39476), (60, 29607), (71, 25020), (90, 19738), (139, 12780), (142, 12510), (180, 9869), (213, 8340), (278, 6390), (284, 6255), (355, 5004), (417, 4260), (426, 4170), (556, 3195), (639, 2780), (695, 2556), (710, 2502), (834, 2130), (852, 2085), (1065, 1668), (1251, 1420), (1278, 1390)]