156989875

素因数分解:

$5^3\times 7^2\times {\mathrm{19}}^2\times {\mathrm{71}}^1$

素因数の和:138

約数の個数: 72

約数和(自身を含む): 243925344

約数和(自身を除く): 86935469

約数列:

[1, 5, 7, 19, 25, 35, 49, 71, 95, 125, 133, 175, 245, 355, 361, 475, 497, 665, 875, 931, 1225, 1349, 1775, 1805, 2375, 2485, 2527, 3325, 3479, 4655, 6125, 6745, 8875, 9025, 9443, 12425, 12635, 16625, 17395, 17689, 23275, 25631, 33725, 45125, 47215, 62125, 63175, 66101, 86975, 88445, 116375, 128155, 168625, 179417, 236075, 315875, 330505, 434875, 442225, 640775, 897085, 1180375, 1255919, 1652525, 2211125, 3203875, 4485425, 6279595, 8262625, 22427125, 31397975, 156989875]

約数ペア:

[(1, 156989875), (5, 31397975), (7, 22427125), (19, 8262625), (25, 6279595), (35, 4485425), (49, 3203875), (71, 2211125), (95, 1652525), (125, 1255919), (133, 1180375), (175, 897085), (245, 640775), (355, 442225), (361, 434875), (475, 330505), (497, 315875), (665, 236075), (875, 179417), (931, 168625), (1225, 128155), (1349, 116375), (1775, 88445), (1805, 86975), (2375, 66101), (2485, 63175), (2527, 62125), (3325, 47215), (3479, 45125), (4655, 33725), (6125, 25631), (6745, 23275), (8875, 17689), (9025, 17395), (9443, 16625), (12425, 12635)]