721061964

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{547}}^1\times {\mathrm{5231}}^1$

素因数の和:5795

約数の個数: 72

約数和(自身を含む): 2087275008

約数和(自身を除く): 1366213044

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 547, 1094, 1641, 2188, 3282, 3829, 4923, 5231, 6564, 7658, 9846, 10462, 11487, 15316, 15693, 19692, 20924, 22974, 31386, 34461, 36617, 45948, 47079, 62772, 68922, 73234, 94158, 109851, 137844, 146468, 188316, 219702, 329553, 439404, 659106, 1318212, 2861357, 5722714, 8584071, 11445428, 17168142, 20029499, 25752213, 34336284, 40058998, 51504426, 60088497, 80117996, 103008852, 120176994, 180265491, 240353988, 360530982, 721061964]

約数ペア:

[(1, 721061964), (2, 360530982), (3, 240353988), (4, 180265491), (6, 120176994), (7, 103008852), (9, 80117996), (12, 60088497), (14, 51504426), (18, 40058998), (21, 34336284), (28, 25752213), (36, 20029499), (42, 17168142), (63, 11445428), (84, 8584071), (126, 5722714), (252, 2861357), (547, 1318212), (1094, 659106), (1641, 439404), (2188, 329553), (3282, 219702), (3829, 188316), (4923, 146468), (5231, 137844), (6564, 109851), (7658, 94158), (9846, 73234), (10462, 68922), (11487, 62772), (15316, 47079), (15693, 45948), (19692, 36617), (20924, 34461), (22974, 31386)]