40720960

素因数分解:

$2^6\times 5^1\times 7^4\times {\mathrm{53}}^1$

素因数の和:98

約数の個数: 140

約数和(自身を含む): 115255548

約数和(自身を除く): 74534588

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 53, 56, 64, 70, 80, 98, 106, 112, 140, 160, 196, 212, 224, 245, 265, 280, 320, 343, 371, 392, 424, 448, 490, 530, 560, 686, 742, 784, 848, 980, 1060, 1120, 1372, 1484, 1568, 1696, 1715, 1855, 1960, 2120, 2240, 2401, 2597, 2744, 2968, 3136, 3392, 3430, 3710, 3920, 4240, 4802, 5194, 5488, 5936, 6860, 7420, 7840, 8480, 9604, 10388, 10976, 11872, 12005, 12985, 13720, 14840, 15680, 16960, 18179, 19208, 20776, 21952, 23744, 24010, 25970, 27440, 29680, 36358, 38416, 41552, 48020, 51940, 54880, 59360, 72716, 76832, 83104, 90895, 96040, 103880, 109760, 118720, 127253, 145432, 153664, 166208, 181790, 192080, 207760, 254506, 290864, 363580, 384160, 415520, 509012, 581728, 636265, 727160, 768320, 831040, 1018024, 1163456, 1272530, 1454320, 2036048, 2545060, 2908640, 4072096, 5090120, 5817280, 8144192, 10180240, 20360480, 40720960]

約数ペア:

[(1, 40720960), (2, 20360480), (4, 10180240), (5, 8144192), (7, 5817280), (8, 5090120), (10, 4072096), (14, 2908640), (16, 2545060), (20, 2036048), (28, 1454320), (32, 1272530), (35, 1163456), (40, 1018024), (49, 831040), (53, 768320), (56, 727160), (64, 636265), (70, 581728), (80, 509012), (98, 415520), (106, 384160), (112, 363580), (140, 290864), (160, 254506), (196, 207760), (212, 192080), (224, 181790), (245, 166208), (265, 153664), (280, 145432), (320, 127253), (343, 118720), (371, 109760), (392, 103880), (424, 96040), (448, 90895), (490, 83104), (530, 76832), (560, 72716), (686, 59360), (742, 54880), (784, 51940), (848, 48020), (980, 41552), (1060, 38416), (1120, 36358), (1372, 29680), (1484, 27440), (1568, 25970), (1696, 24010), (1715, 23744), (1855, 21952), (1960, 20776), (2120, 19208), (2240, 18179), (2401, 16960), (2597, 15680), (2744, 14840), (2968, 13720), (3136, 12985), (3392, 12005), (3430, 11872), (3710, 10976), (3920, 10388), (4240, 9604), (4802, 8480), (5194, 7840), (5488, 7420), (5936, 6860)]