8637460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{239}}^1$

素因数の和:400

約数の個数: 48

約数和(自身を含む): 19756800

約数和(自身を除く): 11119340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 139, 239, 260, 278, 478, 556, 695, 956, 1195, 1390, 1807, 2390, 2780, 3107, 3614, 4780, 6214, 7228, 9035, 12428, 15535, 18070, 31070, 33221, 36140, 62140, 66442, 132884, 166105, 332210, 431873, 664420, 863746, 1727492, 2159365, 4318730, 8637460]

約数ペア:

[(1, 8637460), (2, 4318730), (4, 2159365), (5, 1727492), (10, 863746), (13, 664420), (20, 431873), (26, 332210), (52, 166105), (65, 132884), (130, 66442), (139, 62140), (239, 36140), (260, 33221), (278, 31070), (478, 18070), (556, 15535), (695, 12428), (956, 9035), (1195, 7228), (1390, 6214), (1807, 4780), (2390, 3614), (2780, 3107)]