871981175

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:201

約数の個数: 96

約数和(自身を含む): 1295917056

約数和(自身を除く): 423935881

約数列:

[1, 5, 13, 23, 25, 31, 53, 65, 71, 115, 155, 265, 299, 325, 355, 403, 575, 689, 713, 775, 923, 1219, 1325, 1495, 1633, 1643, 1775, 2015, 2201, 3445, 3565, 3763, 4615, 6095, 7475, 8165, 8215, 9269, 10075, 11005, 15847, 17225, 17825, 18815, 21229, 21359, 23075, 28613, 30475, 37789, 40825, 41075, 46345, 48919, 50623, 55025, 79235, 86549, 94075, 106145, 106795, 116653, 143065, 188945, 231725, 244595, 253115, 396175, 432745, 491257, 530725, 533975, 583265, 658099, 715325, 944725, 1125137, 1222975, 1265575, 1516489, 2163725, 2456285, 2683019, 2916325, 3290495, 5625685, 7582445, 12281425, 13415095, 16452475, 28128425, 34879247, 37912225, 67075475, 174396235, 871981175]

約数ペア:

[(1, 871981175), (5, 174396235), (13, 67075475), (23, 37912225), (25, 34879247), (31, 28128425), (53, 16452475), (65, 13415095), (71, 12281425), (115, 7582445), (155, 5625685), (265, 3290495), (299, 2916325), (325, 2683019), (355, 2456285), (403, 2163725), (575, 1516489), (689, 1265575), (713, 1222975), (775, 1125137), (923, 944725), (1219, 715325), (1325, 658099), (1495, 583265), (1633, 533975), (1643, 530725), (1775, 491257), (2015, 432745), (2201, 396175), (3445, 253115), (3565, 244595), (3763, 231725), (4615, 188945), (6095, 143065), (7475, 116653), (8165, 106795), (8215, 106145), (9269, 94075), (10075, 86549), (11005, 79235), (15847, 55025), (17225, 50623), (17825, 48919), (18815, 46345), (21229, 41075), (21359, 40825), (23075, 37789), (28613, 30475)]