256658220

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1741}}^1$

素因数の和:1782

約数の個数: 240

約数和(自身を含む): 991518528

約数和(自身を除く): 734860308

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 27, 28, 30, 35, 36, 39, 42, 45, 52, 54, 60, 63, 65, 70, 78, 81, 84, 90, 91, 105, 108, 117, 126, 130, 135, 140, 156, 162, 180, 182, 189, 195, 210, 234, 252, 260, 270, 273, 315, 324, 351, 364, 378, 390, 405, 420, 455, 468, 540, 546, 567, 585, 630, 702, 756, 780, 810, 819, 910, 945, 1053, 1092, 1134, 1170, 1260, 1365, 1404, 1620, 1638, 1741, 1755, 1820, 1890, 2106, 2268, 2340, 2457, 2730, 2835, 3276, 3482, 3510, 3780, 4095, 4212, 4914, 5223, 5265, 5460, 5670, 6964, 7020, 7371, 8190, 8705, 9828, 10446, 10530, 11340, 12187, 12285, 14742, 15669, 16380, 17410, 20892, 21060, 22633, 24374, 24570, 26115, 29484, 31338, 34820, 36561, 36855, 45266, 47007, 48748, 49140, 52230, 60935, 62676, 67899, 73122, 73710, 78345, 90532, 94014, 104460, 109683, 113165, 121870, 135798, 141021, 146244, 147420, 156690, 158431, 182805, 188028, 203697, 219366, 226330, 235035, 243740, 271596, 282042, 313380, 316862, 329049, 339495, 365610, 407394, 438732, 452660, 470070, 475293, 548415, 564084, 611091, 633724, 658098, 678990, 705105, 731220, 792155, 814788, 940140, 950586, 987147, 1018485, 1096830, 1222182, 1316196, 1357980, 1410210, 1425879, 1584310, 1645245, 1833273, 1901172, 1974294, 2036970, 2193660, 2376465, 2444364, 2820420, 2851758, 3055455, 3168620, 3290490, 3666546, 3948588, 4073940, 4277637, 4752930, 4935735, 5703516, 6110910, 6580980, 7129395, 7333092, 8555274, 9166365, 9505860, 9871470, 12221820, 12832911, 14258790, 17110548, 18332730, 19742940, 21388185, 25665822, 28517580, 36665460, 42776370, 51331644, 64164555, 85552740, 128329110, 256658220]

約数ペア:

[(1, 256658220), (2, 128329110), (3, 85552740), (4, 64164555), (5, 51331644), (6, 42776370), (7, 36665460), (9, 28517580), (10, 25665822), (12, 21388185), (13, 19742940), (14, 18332730), (15, 17110548), (18, 14258790), (20, 12832911), (21, 12221820), (26, 9871470), (27, 9505860), (28, 9166365), (30, 8555274), (35, 7333092), (36, 7129395), (39, 6580980), (42, 6110910), (45, 5703516), (52, 4935735), (54, 4752930), (60, 4277637), (63, 4073940), (65, 3948588), (70, 3666546), (78, 3290490), (81, 3168620), (84, 3055455), (90, 2851758), (91, 2820420), (105, 2444364), (108, 2376465), (117, 2193660), (126, 2036970), (130, 1974294), (135, 1901172), (140, 1833273), (156, 1645245), (162, 1584310), (180, 1425879), (182, 1410210), (189, 1357980), (195, 1316196), (210, 1222182), (234, 1096830), (252, 1018485), (260, 987147), (270, 950586), (273, 940140), (315, 814788), (324, 792155), (351, 731220), (364, 705105), (378, 678990), (390, 658098), (405, 633724), (420, 611091), (455, 564084), (468, 548415), (540, 475293), (546, 470070), (567, 452660), (585, 438732), (630, 407394), (702, 365610), (756, 339495), (780, 329049), (810, 316862), (819, 313380), (910, 282042), (945, 271596), (1053, 243740), (1092, 235035), (1134, 226330), (1170, 219366), (1260, 203697), (1365, 188028), (1404, 182805), (1620, 158431), (1638, 156690), (1741, 147420), (1755, 146244), (1820, 141021), (1890, 135798), (2106, 121870), (2268, 113165), (2340, 109683), (2457, 104460), (2730, 94014), (2835, 90532), (3276, 78345), (3482, 73710), (3510, 73122), (3780, 67899), (4095, 62676), (4212, 60935), (4914, 52230), (5223, 49140), (5265, 48748), (5460, 47007), (5670, 45266), (6964, 36855), (7020, 36561), (7371, 34820), (8190, 31338), (8705, 29484), (9828, 26115), (10446, 24570), (10530, 24374), (11340, 22633), (12187, 21060), (12285, 20892), (14742, 17410), (15669, 16380)]