71398275

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:213

約数の個数: 72

約数和(自身を含む): 131795136

約数和(自身を除く): 60396861

約数列:

[1, 3, 5, 13, 15, 25, 39, 43, 65, 75, 129, 131, 169, 195, 215, 325, 393, 507, 559, 645, 655, 845, 975, 1075, 1677, 1703, 1965, 2535, 2795, 3225, 3275, 4225, 5109, 5633, 7267, 8385, 8515, 9825, 12675, 13975, 16899, 21801, 22139, 25545, 28165, 36335, 41925, 42575, 66417, 73229, 84495, 109005, 110695, 127725, 140825, 181675, 219687, 332085, 366145, 422475, 545025, 553475, 951977, 1098435, 1660425, 1830725, 2855931, 4759885, 5492175, 14279655, 23799425, 71398275]

約数ペア:

[(1, 71398275), (3, 23799425), (5, 14279655), (13, 5492175), (15, 4759885), (25, 2855931), (39, 1830725), (43, 1660425), (65, 1098435), (75, 951977), (129, 553475), (131, 545025), (169, 422475), (195, 366145), (215, 332085), (325, 219687), (393, 181675), (507, 140825), (559, 127725), (645, 110695), (655, 109005), (845, 84495), (975, 73229), (1075, 66417), (1677, 42575), (1703, 41925), (1965, 36335), (2535, 28165), (2795, 25545), (3225, 22139), (3275, 21801), (4225, 16899), (5109, 13975), (5633, 12675), (7267, 9825), (8385, 8515)]