15888380

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{167}}^1$

素因数の和:314

約数の個数: 48

約数和(自身を含む): 34546176

約数和(自身を除く): 18657796

約数列:

[1, 2, 4, 5, 10, 20, 67, 71, 134, 142, 167, 268, 284, 334, 335, 355, 668, 670, 710, 835, 1340, 1420, 1670, 3340, 4757, 9514, 11189, 11857, 19028, 22378, 23714, 23785, 44756, 47428, 47570, 55945, 59285, 95140, 111890, 118570, 223780, 237140, 794419, 1588838, 3177676, 3972095, 7944190, 15888380]

約数ペア:

[(1, 15888380), (2, 7944190), (4, 3972095), (5, 3177676), (10, 1588838), (20, 794419), (67, 237140), (71, 223780), (134, 118570), (142, 111890), (167, 95140), (268, 59285), (284, 55945), (334, 47570), (335, 47428), (355, 44756), (668, 23785), (670, 23714), (710, 22378), (835, 19028), (1340, 11857), (1420, 11189), (1670, 9514), (3340, 4757)]