27880000

素因数分解:

$2^6\times 5^4\times {\mathrm{17}}^1\times {\mathrm{41}}^1$

素因数の和:90

約数の個数: 140

約数和(自身を含む): 74985372

約数和(自身を除く): 47105372

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 32, 34, 40, 41, 50, 64, 68, 80, 82, 85, 100, 125, 136, 160, 164, 170, 200, 205, 250, 272, 320, 328, 340, 400, 410, 425, 500, 544, 625, 656, 680, 697, 800, 820, 850, 1000, 1025, 1088, 1250, 1312, 1360, 1394, 1600, 1640, 1700, 2000, 2050, 2125, 2500, 2624, 2720, 2788, 3280, 3400, 3485, 4000, 4100, 4250, 5000, 5125, 5440, 5576, 6560, 6800, 6970, 8000, 8200, 8500, 10000, 10250, 10625, 11152, 13120, 13600, 13940, 16400, 17000, 17425, 20000, 20500, 21250, 22304, 25625, 27200, 27880, 32800, 34000, 34850, 40000, 41000, 42500, 44608, 51250, 55760, 65600, 68000, 69700, 82000, 85000, 87125, 102500, 111520, 136000, 139400, 164000, 170000, 174250, 205000, 223040, 278800, 328000, 340000, 348500, 410000, 435625, 557600, 680000, 697000, 820000, 871250, 1115200, 1394000, 1640000, 1742500, 2788000, 3485000, 5576000, 6970000, 13940000, 27880000]

約数ペア:

[(1, 27880000), (2, 13940000), (4, 6970000), (5, 5576000), (8, 3485000), (10, 2788000), (16, 1742500), (17, 1640000), (20, 1394000), (25, 1115200), (32, 871250), (34, 820000), (40, 697000), (41, 680000), (50, 557600), (64, 435625), (68, 410000), (80, 348500), (82, 340000), (85, 328000), (100, 278800), (125, 223040), (136, 205000), (160, 174250), (164, 170000), (170, 164000), (200, 139400), (205, 136000), (250, 111520), (272, 102500), (320, 87125), (328, 85000), (340, 82000), (400, 69700), (410, 68000), (425, 65600), (500, 55760), (544, 51250), (625, 44608), (656, 42500), (680, 41000), (697, 40000), (800, 34850), (820, 34000), (850, 32800), (1000, 27880), (1025, 27200), (1088, 25625), (1250, 22304), (1312, 21250), (1360, 20500), (1394, 20000), (1600, 17425), (1640, 17000), (1700, 16400), (2000, 13940), (2050, 13600), (2125, 13120), (2500, 11152), (2624, 10625), (2720, 10250), (2788, 10000), (3280, 8500), (3400, 8200), (3485, 8000), (4000, 6970), (4100, 6800), (4250, 6560), (5000, 5576), (5125, 5440)]