31216335

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{379}}^1$

素因数の和:440

約数の個数: 48

約数和(自身を含む): 55996800

約数和(自身を除く): 24780465

約数列:

[1, 3, 5, 15, 17, 19, 51, 57, 85, 95, 255, 285, 289, 323, 379, 867, 969, 1137, 1445, 1615, 1895, 4335, 4845, 5491, 5685, 6443, 7201, 16473, 19329, 21603, 27455, 32215, 36005, 82365, 96645, 108015, 109531, 122417, 328593, 367251, 547655, 612085, 1642965, 1836255, 2081089, 6243267, 10405445, 31216335]

約数ペア:

[(1, 31216335), (3, 10405445), (5, 6243267), (15, 2081089), (17, 1836255), (19, 1642965), (51, 612085), (57, 547655), (85, 367251), (95, 328593), (255, 122417), (285, 109531), (289, 108015), (323, 96645), (379, 82365), (867, 36005), (969, 32215), (1137, 27455), (1445, 21603), (1615, 19329), (1895, 16473), (4335, 7201), (4845, 6443), (5491, 5685)]