64807400

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{389}}^1$

素因数の和:436

約数の個数: 144

約数和(自身を含む): 186065100

約数和(自身を除く): 121257700

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 25, 28, 34, 35, 40, 49, 50, 56, 68, 70, 85, 98, 100, 119, 136, 140, 170, 175, 196, 200, 238, 245, 280, 340, 350, 389, 392, 425, 476, 490, 595, 680, 700, 778, 833, 850, 952, 980, 1190, 1225, 1400, 1556, 1666, 1700, 1945, 1960, 2380, 2450, 2723, 2975, 3112, 3332, 3400, 3890, 4165, 4760, 4900, 5446, 5950, 6613, 6664, 7780, 8330, 9725, 9800, 10892, 11900, 13226, 13615, 15560, 16660, 19061, 19450, 20825, 21784, 23800, 26452, 27230, 33065, 33320, 38122, 38900, 41650, 46291, 52904, 54460, 66130, 68075, 76244, 77800, 83300, 92582, 95305, 108920, 132260, 136150, 152488, 165325, 166600, 185164, 190610, 231455, 264520, 272300, 324037, 330650, 370328, 381220, 462910, 476525, 544600, 648074, 661300, 762440, 925820, 953050, 1157275, 1296148, 1322600, 1620185, 1851640, 1906100, 2314550, 2592296, 3240370, 3812200, 4629100, 6480740, 8100925, 9258200, 12961480, 16201850, 32403700, 64807400]

約数ペア:

[(1, 64807400), (2, 32403700), (4, 16201850), (5, 12961480), (7, 9258200), (8, 8100925), (10, 6480740), (14, 4629100), (17, 3812200), (20, 3240370), (25, 2592296), (28, 2314550), (34, 1906100), (35, 1851640), (40, 1620185), (49, 1322600), (50, 1296148), (56, 1157275), (68, 953050), (70, 925820), (85, 762440), (98, 661300), (100, 648074), (119, 544600), (136, 476525), (140, 462910), (170, 381220), (175, 370328), (196, 330650), (200, 324037), (238, 272300), (245, 264520), (280, 231455), (340, 190610), (350, 185164), (389, 166600), (392, 165325), (425, 152488), (476, 136150), (490, 132260), (595, 108920), (680, 95305), (700, 92582), (778, 83300), (833, 77800), (850, 76244), (952, 68075), (980, 66130), (1190, 54460), (1225, 52904), (1400, 46291), (1556, 41650), (1666, 38900), (1700, 38122), (1945, 33320), (1960, 33065), (2380, 27230), (2450, 26452), (2723, 23800), (2975, 21784), (3112, 20825), (3332, 19450), (3400, 19061), (3890, 16660), (4165, 15560), (4760, 13615), (4900, 13226), (5446, 11900), (5950, 10892), (6613, 9800), (6664, 9725), (7780, 8330)]