208521390

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{4751}}^1$

素因数の和:4798

約数の個数: 128

約数和(自身を含む): 656916480

約数和(自身を除く): 448395090

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 19, 21, 22, 30, 33, 35, 38, 42, 55, 57, 66, 70, 77, 95, 105, 110, 114, 133, 154, 165, 190, 209, 210, 231, 266, 285, 330, 385, 399, 418, 462, 570, 627, 665, 770, 798, 1045, 1155, 1254, 1330, 1463, 1995, 2090, 2310, 2926, 3135, 3990, 4389, 4751, 6270, 7315, 8778, 9502, 14253, 14630, 21945, 23755, 28506, 33257, 43890, 47510, 52261, 66514, 71265, 90269, 99771, 104522, 142530, 156783, 166285, 180538, 199542, 261305, 270807, 313566, 332570, 365827, 451345, 498855, 522610, 541614, 631883, 731654, 783915, 902690, 992959, 997710, 1097481, 1263766, 1354035, 1567830, 1829135, 1895649, 1985918, 2194962, 2708070, 2978877, 3159415, 3658270, 3791298, 4964795, 5487405, 5957754, 6318830, 6950713, 9478245, 9929590, 10974810, 13901426, 14894385, 18956490, 20852139, 29788770, 34753565, 41704278, 69507130, 104260695, 208521390]

約数ペア:

[(1, 208521390), (2, 104260695), (3, 69507130), (5, 41704278), (6, 34753565), (7, 29788770), (10, 20852139), (11, 18956490), (14, 14894385), (15, 13901426), (19, 10974810), (21, 9929590), (22, 9478245), (30, 6950713), (33, 6318830), (35, 5957754), (38, 5487405), (42, 4964795), (55, 3791298), (57, 3658270), (66, 3159415), (70, 2978877), (77, 2708070), (95, 2194962), (105, 1985918), (110, 1895649), (114, 1829135), (133, 1567830), (154, 1354035), (165, 1263766), (190, 1097481), (209, 997710), (210, 992959), (231, 902690), (266, 783915), (285, 731654), (330, 631883), (385, 541614), (399, 522610), (418, 498855), (462, 451345), (570, 365827), (627, 332570), (665, 313566), (770, 270807), (798, 261305), (1045, 199542), (1155, 180538), (1254, 166285), (1330, 156783), (1463, 142530), (1995, 104522), (2090, 99771), (2310, 90269), (2926, 71265), (3135, 66514), (3990, 52261), (4389, 47510), (4751, 43890), (6270, 33257), (7315, 28506), (8778, 23755), (9502, 21945), (14253, 14630)]