66688000

素因数分解:

$2^{10}\times 5^3\times {\mathrm{521}}^1$

素因数の和:556

約数の個数: 88

約数和(自身を含む): 166691304

約数和(自身を除く): 100003304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 256, 320, 400, 500, 512, 521, 640, 800, 1000, 1024, 1042, 1280, 1600, 2000, 2084, 2560, 2605, 3200, 4000, 4168, 5120, 5210, 6400, 8000, 8336, 10420, 12800, 13025, 16000, 16672, 20840, 25600, 26050, 32000, 33344, 41680, 52100, 64000, 65125, 66688, 83360, 104200, 128000, 130250, 133376, 166720, 208400, 260500, 266752, 333440, 416800, 521000, 533504, 666880, 833600, 1042000, 1333760, 1667200, 2084000, 2667520, 3334400, 4168000, 6668800, 8336000, 13337600, 16672000, 33344000, 66688000]

約数ペア:

[(1, 66688000), (2, 33344000), (4, 16672000), (5, 13337600), (8, 8336000), (10, 6668800), (16, 4168000), (20, 3334400), (25, 2667520), (32, 2084000), (40, 1667200), (50, 1333760), (64, 1042000), (80, 833600), (100, 666880), (125, 533504), (128, 521000), (160, 416800), (200, 333440), (250, 266752), (256, 260500), (320, 208400), (400, 166720), (500, 133376), (512, 130250), (521, 128000), (640, 104200), (800, 83360), (1000, 66688), (1024, 65125), (1042, 64000), (1280, 52100), (1600, 41680), (2000, 33344), (2084, 32000), (2560, 26050), (2605, 25600), (3200, 20840), (4000, 16672), (4168, 16000), (5120, 13025), (5210, 12800), (6400, 10420), (8000, 8336)]