28220000

素因数分解:

$2^5\times 5^4\times {\mathrm{17}}^1\times {\mathrm{83}}^1$

素因数の和:130

約数の個数: 120

約数和(自身を含む): 74394936

約数和(自身を除く): 46174936

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 32, 34, 40, 50, 68, 80, 83, 85, 100, 125, 136, 160, 166, 170, 200, 250, 272, 332, 340, 400, 415, 425, 500, 544, 625, 664, 680, 800, 830, 850, 1000, 1250, 1328, 1360, 1411, 1660, 1700, 2000, 2075, 2125, 2500, 2656, 2720, 2822, 3320, 3400, 4000, 4150, 4250, 5000, 5644, 6640, 6800, 7055, 8300, 8500, 10000, 10375, 10625, 11288, 13280, 13600, 14110, 16600, 17000, 20000, 20750, 21250, 22576, 28220, 33200, 34000, 35275, 41500, 42500, 45152, 51875, 56440, 66400, 68000, 70550, 83000, 85000, 103750, 112880, 141100, 166000, 170000, 176375, 207500, 225760, 282200, 332000, 340000, 352750, 415000, 564400, 705500, 830000, 881875, 1128800, 1411000, 1660000, 1763750, 2822000, 3527500, 5644000, 7055000, 14110000, 28220000]

約数ペア:

[(1, 28220000), (2, 14110000), (4, 7055000), (5, 5644000), (8, 3527500), (10, 2822000), (16, 1763750), (17, 1660000), (20, 1411000), (25, 1128800), (32, 881875), (34, 830000), (40, 705500), (50, 564400), (68, 415000), (80, 352750), (83, 340000), (85, 332000), (100, 282200), (125, 225760), (136, 207500), (160, 176375), (166, 170000), (170, 166000), (200, 141100), (250, 112880), (272, 103750), (332, 85000), (340, 83000), (400, 70550), (415, 68000), (425, 66400), (500, 56440), (544, 51875), (625, 45152), (664, 42500), (680, 41500), (800, 35275), (830, 34000), (850, 33200), (1000, 28220), (1250, 22576), (1328, 21250), (1360, 20750), (1411, 20000), (1660, 17000), (1700, 16600), (2000, 14110), (2075, 13600), (2125, 13280), (2500, 11288), (2656, 10625), (2720, 10375), (2822, 10000), (3320, 8500), (3400, 8300), (4000, 7055), (4150, 6800), (4250, 6640), (5000, 5644)]