8638720

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{397}}^1$

素因数の和:435

約数の個数: 72

約数和(自身を含む): 21964824

約数和(自身を除く): 13326104

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 256, 272, 320, 340, 397, 544, 640, 680, 794, 1088, 1280, 1360, 1588, 1985, 2176, 2720, 3176, 3970, 4352, 5440, 6352, 6749, 7940, 10880, 12704, 13498, 15880, 21760, 25408, 26996, 31760, 33745, 50816, 53992, 63520, 67490, 101632, 107984, 127040, 134980, 215968, 254080, 269960, 431936, 508160, 539920, 863872, 1079840, 1727744, 2159680, 4319360, 8638720]

約数ペア:

[(1, 8638720), (2, 4319360), (4, 2159680), (5, 1727744), (8, 1079840), (10, 863872), (16, 539920), (17, 508160), (20, 431936), (32, 269960), (34, 254080), (40, 215968), (64, 134980), (68, 127040), (80, 107984), (85, 101632), (128, 67490), (136, 63520), (160, 53992), (170, 50816), (256, 33745), (272, 31760), (320, 26996), (340, 25408), (397, 21760), (544, 15880), (640, 13498), (680, 12704), (794, 10880), (1088, 7940), (1280, 6749), (1360, 6352), (1588, 5440), (1985, 4352), (2176, 3970), (2720, 3176)]