638304240

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{19997}}^1$

素因数の和:20039

約数の個数: 160

約数和(自身を含む): 2380561920

約数和(自身を除く): 1742257680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 48, 56, 57, 60, 70, 76, 80, 84, 95, 105, 112, 114, 120, 133, 140, 152, 168, 190, 210, 228, 240, 266, 280, 285, 304, 336, 380, 399, 420, 456, 532, 560, 570, 665, 760, 798, 840, 912, 1064, 1140, 1330, 1520, 1596, 1680, 1995, 2128, 2280, 2660, 3192, 3990, 4560, 5320, 6384, 7980, 10640, 15960, 19997, 31920, 39994, 59991, 79988, 99985, 119982, 139979, 159976, 199970, 239964, 279958, 299955, 319952, 379943, 399940, 419937, 479928, 559916, 599910, 699895, 759886, 799880, 839874, 959856, 1119832, 1139829, 1199820, 1399790, 1519772, 1599760, 1679748, 1899715, 2099685, 2239664, 2279658, 2399640, 2659601, 2799580, 3039544, 3359496, 3799430, 4199370, 4559316, 4799280, 5319202, 5599160, 5699145, 6079088, 6718992, 7598860, 7978803, 8398740, 9118632, 10638404, 11198320, 11398290, 13298005, 15197720, 15957606, 16797480, 18237264, 21276808, 22796580, 26596010, 30395440, 31915212, 33594960, 39894015, 42553616, 45593160, 53192020, 63830424, 79788030, 91186320, 106384040, 127660848, 159576060, 212768080, 319152120, 638304240]

約数ペア:

[(1, 638304240), (2, 319152120), (3, 212768080), (4, 159576060), (5, 127660848), (6, 106384040), (7, 91186320), (8, 79788030), (10, 63830424), (12, 53192020), (14, 45593160), (15, 42553616), (16, 39894015), (19, 33594960), (20, 31915212), (21, 30395440), (24, 26596010), (28, 22796580), (30, 21276808), (35, 18237264), (38, 16797480), (40, 15957606), (42, 15197720), (48, 13298005), (56, 11398290), (57, 11198320), (60, 10638404), (70, 9118632), (76, 8398740), (80, 7978803), (84, 7598860), (95, 6718992), (105, 6079088), (112, 5699145), (114, 5599160), (120, 5319202), (133, 4799280), (140, 4559316), (152, 4199370), (168, 3799430), (190, 3359496), (210, 3039544), (228, 2799580), (240, 2659601), (266, 2399640), (280, 2279658), (285, 2239664), (304, 2099685), (336, 1899715), (380, 1679748), (399, 1599760), (420, 1519772), (456, 1399790), (532, 1199820), (560, 1139829), (570, 1119832), (665, 959856), (760, 839874), (798, 799880), (840, 759886), (912, 699895), (1064, 599910), (1140, 559916), (1330, 479928), (1520, 419937), (1596, 399940), (1680, 379943), (1995, 319952), (2128, 299955), (2280, 279958), (2660, 239964), (3192, 199970), (3990, 159976), (4560, 139979), (5320, 119982), (6384, 99985), (7980, 79988), (10640, 59991), (15960, 39994), (19997, 31920)]