647215520

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{2663}}^1$

素因数の和:2723

約数の個数: 144

約数和(自身を含む): 1836753408

約数和(自身を除く): 1189537888

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 49, 56, 62, 70, 80, 98, 112, 124, 140, 155, 160, 196, 217, 224, 245, 248, 280, 310, 392, 434, 490, 496, 560, 620, 784, 868, 980, 992, 1085, 1120, 1240, 1519, 1568, 1736, 1960, 2170, 2480, 2663, 3038, 3472, 3920, 4340, 4960, 5326, 6076, 6944, 7595, 7840, 8680, 10652, 12152, 13315, 15190, 17360, 18641, 21304, 24304, 26630, 30380, 34720, 37282, 42608, 48608, 53260, 60760, 74564, 82553, 85216, 93205, 106520, 121520, 130487, 149128, 165106, 186410, 213040, 243040, 260974, 298256, 330212, 372820, 412765, 426080, 521948, 577871, 596512, 652435, 660424, 745640, 825530, 1043896, 1155742, 1304870, 1320848, 1491280, 1651060, 2087792, 2311484, 2609740, 2641696, 2889355, 2982560, 3302120, 4045097, 4175584, 4622968, 5219480, 5778710, 6604240, 8090194, 9245936, 10438960, 11557420, 13208480, 16180388, 18491872, 20225485, 20877920, 23114840, 32360776, 40450970, 46229680, 64721552, 80901940, 92459360, 129443104, 161803880, 323607760, 647215520]

約数ペア:

[(1, 647215520), (2, 323607760), (4, 161803880), (5, 129443104), (7, 92459360), (8, 80901940), (10, 64721552), (14, 46229680), (16, 40450970), (20, 32360776), (28, 23114840), (31, 20877920), (32, 20225485), (35, 18491872), (40, 16180388), (49, 13208480), (56, 11557420), (62, 10438960), (70, 9245936), (80, 8090194), (98, 6604240), (112, 5778710), (124, 5219480), (140, 4622968), (155, 4175584), (160, 4045097), (196, 3302120), (217, 2982560), (224, 2889355), (245, 2641696), (248, 2609740), (280, 2311484), (310, 2087792), (392, 1651060), (434, 1491280), (490, 1320848), (496, 1304870), (560, 1155742), (620, 1043896), (784, 825530), (868, 745640), (980, 660424), (992, 652435), (1085, 596512), (1120, 577871), (1240, 521948), (1519, 426080), (1568, 412765), (1736, 372820), (1960, 330212), (2170, 298256), (2480, 260974), (2663, 243040), (3038, 213040), (3472, 186410), (3920, 165106), (4340, 149128), (4960, 130487), (5326, 121520), (6076, 106520), (6944, 93205), (7595, 85216), (7840, 82553), (8680, 74564), (10652, 60760), (12152, 53260), (13315, 48608), (15190, 42608), (17360, 37282), (18641, 34720), (21304, 30380), (24304, 26630)]