89501960

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{811}}^1$

素因数の和:942

約数の個数: 64

約数和(自身を含む): 210470400

約数和(自身を除く): 120968440

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 89, 124, 155, 178, 248, 310, 356, 445, 620, 712, 811, 890, 1240, 1622, 1780, 2759, 3244, 3560, 4055, 5518, 6488, 8110, 11036, 13795, 16220, 22072, 25141, 27590, 32440, 50282, 55180, 72179, 100564, 110360, 125705, 144358, 201128, 251410, 288716, 360895, 502820, 577432, 721790, 1005640, 1443580, 2237549, 2887160, 4475098, 8950196, 11187745, 17900392, 22375490, 44750980, 89501960]

約数ペア:

[(1, 89501960), (2, 44750980), (4, 22375490), (5, 17900392), (8, 11187745), (10, 8950196), (20, 4475098), (31, 2887160), (40, 2237549), (62, 1443580), (89, 1005640), (124, 721790), (155, 577432), (178, 502820), (248, 360895), (310, 288716), (356, 251410), (445, 201128), (620, 144358), (712, 125705), (811, 110360), (890, 100564), (1240, 72179), (1622, 55180), (1780, 50282), (2759, 32440), (3244, 27590), (3560, 25141), (4055, 22072), (5518, 16220), (6488, 13795), (8110, 11036)]