20687625

素因数分解:

$3^2\times 5^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:136

約数の個数: 96

約数和(自身を含む): 44388864

約数和(自身を除く): 23701239

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 37, 45, 63, 71, 75, 105, 111, 125, 175, 185, 213, 225, 259, 315, 333, 355, 375, 497, 525, 555, 639, 777, 875, 925, 1065, 1125, 1295, 1491, 1575, 1665, 1775, 2331, 2485, 2625, 2627, 2775, 3195, 3885, 4473, 4625, 5325, 6475, 7455, 7875, 7881, 8325, 8875, 11655, 12425, 13135, 13875, 15975, 18389, 19425, 22365, 23643, 26625, 32375, 37275, 39405, 41625, 55167, 58275, 62125, 65675, 79875, 91945, 97125, 111825, 118215, 165501, 186375, 197025, 275835, 291375, 328375, 459725, 559125, 591075, 827505, 985125, 1379175, 2298625, 2955375, 4137525, 6895875, 20687625]

約数ペア:

[(1, 20687625), (3, 6895875), (5, 4137525), (7, 2955375), (9, 2298625), (15, 1379175), (21, 985125), (25, 827505), (35, 591075), (37, 559125), (45, 459725), (63, 328375), (71, 291375), (75, 275835), (105, 197025), (111, 186375), (125, 165501), (175, 118215), (185, 111825), (213, 97125), (225, 91945), (259, 79875), (315, 65675), (333, 62125), (355, 58275), (375, 55167), (497, 41625), (525, 39405), (555, 37275), (639, 32375), (777, 26625), (875, 23643), (925, 22365), (1065, 19425), (1125, 18389), (1295, 15975), (1491, 13875), (1575, 13135), (1665, 12425), (1775, 11655), (2331, 8875), (2485, 8325), (2625, 7881), (2627, 7875), (2775, 7455), (3195, 6475), (3885, 5325), (4473, 4625)]