31561764

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{79}}^1\times {\mathrm{197}}^1$

素因数の和:309

約数の個数: 72

約数和(自身を含む): 81164160

約数和(自身を除く): 49602396

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 79, 156, 158, 169, 197, 237, 316, 338, 394, 474, 507, 591, 676, 788, 948, 1014, 1027, 1182, 2028, 2054, 2364, 2561, 3081, 4108, 5122, 6162, 7683, 10244, 12324, 13351, 15366, 15563, 26702, 30732, 31126, 33293, 40053, 46689, 53404, 62252, 66586, 80106, 93378, 99879, 133172, 160212, 186756, 199758, 202319, 399516, 404638, 606957, 809276, 1213914, 2427828, 2630147, 5260294, 7890441, 10520588, 15780882, 31561764]

約数ペア:

[(1, 31561764), (2, 15780882), (3, 10520588), (4, 7890441), (6, 5260294), (12, 2630147), (13, 2427828), (26, 1213914), (39, 809276), (52, 606957), (78, 404638), (79, 399516), (156, 202319), (158, 199758), (169, 186756), (197, 160212), (237, 133172), (316, 99879), (338, 93378), (394, 80106), (474, 66586), (507, 62252), (591, 53404), (676, 46689), (788, 40053), (948, 33293), (1014, 31126), (1027, 30732), (1182, 26702), (2028, 15563), (2054, 15366), (2364, 13351), (2561, 12324), (3081, 10244), (4108, 7683), (5122, 6162)]