31821270

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{587}}^1$

素因数の和:749

約数の個数: 64

約数和(自身を含む): 82978560

約数和(自身を除く): 51157290

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 139, 195, 278, 390, 417, 587, 695, 834, 1174, 1390, 1761, 1807, 2085, 2935, 3522, 3614, 4170, 5421, 5870, 7631, 8805, 9035, 10842, 15262, 17610, 18070, 22893, 27105, 38155, 45786, 54210, 76310, 81593, 114465, 163186, 228930, 244779, 407965, 489558, 815930, 1060709, 1223895, 2121418, 2447790, 3182127, 5303545, 6364254, 10607090, 15910635, 31821270]

約数ペア:

[(1, 31821270), (2, 15910635), (3, 10607090), (5, 6364254), (6, 5303545), (10, 3182127), (13, 2447790), (15, 2121418), (26, 1223895), (30, 1060709), (39, 815930), (65, 489558), (78, 407965), (130, 244779), (139, 228930), (195, 163186), (278, 114465), (390, 81593), (417, 76310), (587, 54210), (695, 45786), (834, 38155), (1174, 27105), (1390, 22893), (1761, 18070), (1807, 17610), (2085, 15262), (2935, 10842), (3522, 9035), (3614, 8805), (4170, 7631), (5421, 5870)]