28663040

素因数分解:

$2^8\times 5^1\times 7^2\times {\mathrm{457}}^1$

素因数の和:492

約数の個数: 108

約数和(自身を含む): 80040996

約数和(自身を除く): 51377956

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 224, 245, 256, 280, 320, 392, 448, 457, 490, 560, 640, 784, 896, 914, 980, 1120, 1280, 1568, 1792, 1828, 1960, 2240, 2285, 3136, 3199, 3656, 3920, 4480, 4570, 6272, 6398, 7312, 7840, 8960, 9140, 12544, 12796, 14624, 15680, 15995, 18280, 22393, 25592, 29248, 31360, 31990, 36560, 44786, 51184, 58496, 62720, 63980, 73120, 89572, 102368, 111965, 116992, 127960, 146240, 179144, 204736, 223930, 255920, 292480, 358288, 409472, 447860, 511840, 584960, 716576, 818944, 895720, 1023680, 1433152, 1791440, 2047360, 2866304, 3582880, 4094720, 5732608, 7165760, 14331520, 28663040]

約数ペア:

[(1, 28663040), (2, 14331520), (4, 7165760), (5, 5732608), (7, 4094720), (8, 3582880), (10, 2866304), (14, 2047360), (16, 1791440), (20, 1433152), (28, 1023680), (32, 895720), (35, 818944), (40, 716576), (49, 584960), (56, 511840), (64, 447860), (70, 409472), (80, 358288), (98, 292480), (112, 255920), (128, 223930), (140, 204736), (160, 179144), (196, 146240), (224, 127960), (245, 116992), (256, 111965), (280, 102368), (320, 89572), (392, 73120), (448, 63980), (457, 62720), (490, 58496), (560, 51184), (640, 44786), (784, 36560), (896, 31990), (914, 31360), (980, 29248), (1120, 25592), (1280, 22393), (1568, 18280), (1792, 15995), (1828, 15680), (1960, 14624), (2240, 12796), (2285, 12544), (3136, 9140), (3199, 8960), (3656, 7840), (3920, 7312), (4480, 6398), (4570, 6272)]