81027275

素因数分解:

$5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{491}}^1$

素因数の和:572

約数の個数: 48

約数和(自身を含む): 122992128

約数和(自身を除く): 41964853

約数列:

[1, 5, 7, 23, 25, 35, 41, 115, 161, 175, 205, 287, 491, 575, 805, 943, 1025, 1435, 2455, 3437, 4025, 4715, 6601, 7175, 11293, 12275, 17185, 20131, 23575, 33005, 56465, 79051, 85925, 100655, 140917, 165025, 282325, 395255, 463013, 503275, 704585, 1976275, 2315065, 3241091, 3522925, 11575325, 16205455, 81027275]

約数ペア:

[(1, 81027275), (5, 16205455), (7, 11575325), (23, 3522925), (25, 3241091), (35, 2315065), (41, 1976275), (115, 704585), (161, 503275), (175, 463013), (205, 395255), (287, 282325), (491, 165025), (575, 140917), (805, 100655), (943, 85925), (1025, 79051), (1435, 56465), (2455, 33005), (3437, 23575), (4025, 20131), (4715, 17185), (6601, 12275), (7175, 11293)]