20982400

素因数分解:

$2^7\times 5^2\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:186

約数の個数: 96

約数和(自身を含む): 53121600

約数和(自身を除く): 32139200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 79, 80, 83, 100, 128, 158, 160, 166, 200, 316, 320, 332, 395, 400, 415, 632, 640, 664, 790, 800, 830, 1264, 1328, 1580, 1600, 1660, 1975, 2075, 2528, 2656, 3160, 3200, 3320, 3950, 4150, 5056, 5312, 6320, 6557, 6640, 7900, 8300, 10112, 10624, 12640, 13114, 13280, 15800, 16600, 25280, 26228, 26560, 31600, 32785, 33200, 50560, 52456, 53120, 63200, 65570, 66400, 104912, 126400, 131140, 132800, 163925, 209824, 252800, 262280, 265600, 327850, 419648, 524560, 655700, 839296, 1049120, 1311400, 2098240, 2622800, 4196480, 5245600, 10491200, 20982400]

約数ペア:

[(1, 20982400), (2, 10491200), (4, 5245600), (5, 4196480), (8, 2622800), (10, 2098240), (16, 1311400), (20, 1049120), (25, 839296), (32, 655700), (40, 524560), (50, 419648), (64, 327850), (79, 265600), (80, 262280), (83, 252800), (100, 209824), (128, 163925), (158, 132800), (160, 131140), (166, 126400), (200, 104912), (316, 66400), (320, 65570), (332, 63200), (395, 53120), (400, 52456), (415, 50560), (632, 33200), (640, 32785), (664, 31600), (790, 26560), (800, 26228), (830, 25280), (1264, 16600), (1328, 15800), (1580, 13280), (1600, 13114), (1660, 12640), (1975, 10624), (2075, 10112), (2528, 8300), (2656, 7900), (3160, 6640), (3200, 6557), (3320, 6320), (3950, 5312), (4150, 5056)]