79655000

素因数分解:

$2^3\times 5^4\times {\mathrm{89}}^1\times {\mathrm{179}}^1$

素因数の和:294

約数の個数: 80

約数和(自身を含む): 189783000

約数和(自身を除く): 110128000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 89, 100, 125, 178, 179, 200, 250, 356, 358, 445, 500, 625, 712, 716, 890, 895, 1000, 1250, 1432, 1780, 1790, 2225, 2500, 3560, 3580, 4450, 4475, 5000, 7160, 8900, 8950, 11125, 15931, 17800, 17900, 22250, 22375, 31862, 35800, 44500, 44750, 55625, 63724, 79655, 89000, 89500, 111250, 111875, 127448, 159310, 179000, 222500, 223750, 318620, 398275, 445000, 447500, 637240, 796550, 895000, 1593100, 1991375, 3186200, 3982750, 7965500, 9956875, 15931000, 19913750, 39827500, 79655000]

約数ペア:

[(1, 79655000), (2, 39827500), (4, 19913750), (5, 15931000), (8, 9956875), (10, 7965500), (20, 3982750), (25, 3186200), (40, 1991375), (50, 1593100), (89, 895000), (100, 796550), (125, 637240), (178, 447500), (179, 445000), (200, 398275), (250, 318620), (356, 223750), (358, 222500), (445, 179000), (500, 159310), (625, 127448), (712, 111875), (716, 111250), (890, 89500), (895, 89000), (1000, 79655), (1250, 63724), (1432, 55625), (1780, 44750), (1790, 44500), (2225, 35800), (2500, 31862), (3560, 22375), (3580, 22250), (4450, 17900), (4475, 17800), (5000, 15931), (7160, 11125), (8900, 8950)]