640337984

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:165

約数の個数: 224

約数和(自身を含む): 1608563712

約数和(自身を除く): 968225728

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 31, 32, 37, 44, 52, 61, 62, 64, 74, 88, 104, 122, 124, 143, 148, 176, 208, 244, 248, 286, 296, 341, 352, 403, 407, 416, 481, 488, 496, 572, 592, 671, 682, 704, 793, 806, 814, 832, 962, 976, 992, 1144, 1147, 1184, 1342, 1364, 1586, 1612, 1628, 1891, 1924, 1952, 1984, 2257, 2288, 2294, 2368, 2684, 2728, 3172, 3224, 3256, 3782, 3848, 3904, 4433, 4514, 4576, 4588, 5291, 5368, 5456, 6344, 6448, 6512, 7564, 7696, 8723, 8866, 9028, 9152, 9176, 10582, 10736, 10912, 12617, 12688, 12896, 13024, 14911, 15128, 15392, 17446, 17732, 18056, 18352, 20801, 21164, 21472, 21824, 24583, 24827, 25234, 25376, 25792, 26048, 29341, 29822, 30256, 30784, 34892, 35464, 36112, 36704, 41602, 42328, 42944, 49166, 49654, 50468, 50752, 58682, 59644, 60512, 69784, 69967, 70928, 72224, 73408, 83204, 84656, 98332, 99308, 100936, 117364, 119288, 121024, 139568, 139934, 141856, 144448, 164021, 166408, 169312, 196664, 198616, 201872, 234728, 238576, 270413, 279136, 279868, 283712, 322751, 328042, 332816, 338624, 393328, 397232, 403744, 469456, 477152, 540826, 558272, 559736, 645502, 656084, 665632, 769637, 786656, 794464, 807488, 909571, 938912, 954304, 1081652, 1119472, 1291004, 1312168, 1331264, 1539274, 1573312, 1588928, 1819142, 1877824, 2163304, 2238944, 2582008, 2624336, 3078548, 3638284, 4326608, 4477888, 5164016, 5248672, 6157096, 7276568, 8653216, 10005281, 10328032, 10497344, 12314192, 14553136, 17306432, 20010562, 20656064, 24628384, 29106272, 40021124, 49256768, 58212544, 80042248, 160084496, 320168992, 640337984]

約数ペア:

[(1, 640337984), (2, 320168992), (4, 160084496), (8, 80042248), (11, 58212544), (13, 49256768), (16, 40021124), (22, 29106272), (26, 24628384), (31, 20656064), (32, 20010562), (37, 17306432), (44, 14553136), (52, 12314192), (61, 10497344), (62, 10328032), (64, 10005281), (74, 8653216), (88, 7276568), (104, 6157096), (122, 5248672), (124, 5164016), (143, 4477888), (148, 4326608), (176, 3638284), (208, 3078548), (244, 2624336), (248, 2582008), (286, 2238944), (296, 2163304), (341, 1877824), (352, 1819142), (403, 1588928), (407, 1573312), (416, 1539274), (481, 1331264), (488, 1312168), (496, 1291004), (572, 1119472), (592, 1081652), (671, 954304), (682, 938912), (704, 909571), (793, 807488), (806, 794464), (814, 786656), (832, 769637), (962, 665632), (976, 656084), (992, 645502), (1144, 559736), (1147, 558272), (1184, 540826), (1342, 477152), (1364, 469456), (1586, 403744), (1612, 397232), (1628, 393328), (1891, 338624), (1924, 332816), (1952, 328042), (1984, 322751), (2257, 283712), (2288, 279868), (2294, 279136), (2368, 270413), (2684, 238576), (2728, 234728), (3172, 201872), (3224, 198616), (3256, 196664), (3782, 169312), (3848, 166408), (3904, 164021), (4433, 144448), (4514, 141856), (4576, 139934), (4588, 139568), (5291, 121024), (5368, 119288), (5456, 117364), (6344, 100936), (6448, 99308), (6512, 98332), (7564, 84656), (7696, 83204), (8723, 73408), (8866, 72224), (9028, 70928), (9152, 69967), (9176, 69784), (10582, 60512), (10736, 59644), (10912, 58682), (12617, 50752), (12688, 50468), (12896, 49654), (13024, 49166), (14911, 42944), (15128, 42328), (15392, 41602), (17446, 36704), (17732, 36112), (18056, 35464), (18352, 34892), (20801, 30784), (21164, 30256), (21472, 29822), (21824, 29341), (24583, 26048), (24827, 25792), (25234, 25376)]