640751040

素因数分解:

$2^6\times 3^3\times 5^1\times {\mathrm{74161}}^1$

素因数の和:74187

約数の個数: 112

約数和(自身を含む): 2260457760

約数和(自身を除く): 1619706720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 108, 120, 135, 144, 160, 180, 192, 216, 240, 270, 288, 320, 360, 432, 480, 540, 576, 720, 864, 960, 1080, 1440, 1728, 2160, 2880, 4320, 8640, 74161, 148322, 222483, 296644, 370805, 444966, 593288, 667449, 741610, 889932, 1112415, 1186576, 1334898, 1483220, 1779864, 2002347, 2224830, 2373152, 2669796, 2966440, 3337245, 3559728, 4004694, 4449660, 4746304, 5339592, 5932880, 6674490, 7119456, 8009388, 8899320, 10011735, 10679184, 11865760, 13348980, 14238912, 16018776, 17798640, 20023470, 21358368, 23731520, 26697960, 32037552, 35597280, 40046940, 42716736, 53395920, 64075104, 71194560, 80093880, 106791840, 128150208, 160187760, 213583680, 320375520, 640751040]

約数ペア:

[(1, 640751040), (2, 320375520), (3, 213583680), (4, 160187760), (5, 128150208), (6, 106791840), (8, 80093880), (9, 71194560), (10, 64075104), (12, 53395920), (15, 42716736), (16, 40046940), (18, 35597280), (20, 32037552), (24, 26697960), (27, 23731520), (30, 21358368), (32, 20023470), (36, 17798640), (40, 16018776), (45, 14238912), (48, 13348980), (54, 11865760), (60, 10679184), (64, 10011735), (72, 8899320), (80, 8009388), (90, 7119456), (96, 6674490), (108, 5932880), (120, 5339592), (135, 4746304), (144, 4449660), (160, 4004694), (180, 3559728), (192, 3337245), (216, 2966440), (240, 2669796), (270, 2373152), (288, 2224830), (320, 2002347), (360, 1779864), (432, 1483220), (480, 1334898), (540, 1186576), (576, 1112415), (720, 889932), (864, 741610), (960, 667449), (1080, 593288), (1440, 444966), (1728, 370805), (2160, 296644), (2880, 222483), (4320, 148322), (8640, 74161)]