263927720

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{89}}^2$

素因数の和:220

約数の個数: 144

約数和(自身を含む): 739735740

約数和(自身を除く): 475808020

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 49, 56, 68, 70, 85, 89, 98, 119, 136, 140, 170, 178, 196, 238, 245, 280, 340, 356, 392, 445, 476, 490, 595, 623, 680, 712, 833, 890, 952, 980, 1190, 1246, 1513, 1666, 1780, 1960, 2380, 2492, 3026, 3115, 3332, 3560, 4165, 4361, 4760, 4984, 6052, 6230, 6664, 7565, 7921, 8330, 8722, 10591, 12104, 12460, 15130, 15842, 16660, 17444, 21182, 21805, 24920, 30260, 31684, 33320, 34888, 39605, 42364, 43610, 52955, 55447, 60520, 63368, 74137, 79210, 84728, 87220, 105910, 110894, 134657, 148274, 158420, 174440, 211820, 221788, 269314, 277235, 296548, 316840, 370685, 388129, 423640, 443576, 538628, 554470, 593096, 673285, 741370, 776258, 942599, 1077256, 1108940, 1346570, 1482740, 1552516, 1885198, 1940645, 2217880, 2693140, 2965480, 3105032, 3770396, 3881290, 4712995, 5386280, 6598193, 7540792, 7762580, 9425990, 13196386, 15525160, 18851980, 26392772, 32990965, 37703960, 52785544, 65981930, 131963860, 263927720]

約数ペア:

[(1, 263927720), (2, 131963860), (4, 65981930), (5, 52785544), (7, 37703960), (8, 32990965), (10, 26392772), (14, 18851980), (17, 15525160), (20, 13196386), (28, 9425990), (34, 7762580), (35, 7540792), (40, 6598193), (49, 5386280), (56, 4712995), (68, 3881290), (70, 3770396), (85, 3105032), (89, 2965480), (98, 2693140), (119, 2217880), (136, 1940645), (140, 1885198), (170, 1552516), (178, 1482740), (196, 1346570), (238, 1108940), (245, 1077256), (280, 942599), (340, 776258), (356, 741370), (392, 673285), (445, 593096), (476, 554470), (490, 538628), (595, 443576), (623, 423640), (680, 388129), (712, 370685), (833, 316840), (890, 296548), (952, 277235), (980, 269314), (1190, 221788), (1246, 211820), (1513, 174440), (1666, 158420), (1780, 148274), (1960, 134657), (2380, 110894), (2492, 105910), (3026, 87220), (3115, 84728), (3332, 79210), (3560, 74137), (4165, 63368), (4361, 60520), (4760, 55447), (4984, 52955), (6052, 43610), (6230, 42364), (6664, 39605), (7565, 34888), (7921, 33320), (8330, 31684), (8722, 30260), (10591, 24920), (12104, 21805), (12460, 21182), (15130, 17444), (15842, 16660)]