645281988

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{167}}^1$

素因数の和:282

約数の個数: 192

約数和(自身を含む): 1820786688

約数和(自身を除く): 1175504700

約数列:

[1, 2, 3, 4, 6, 12, 13, 17, 26, 31, 34, 39, 47, 51, 52, 62, 68, 78, 93, 94, 102, 124, 141, 156, 167, 186, 188, 204, 221, 282, 334, 372, 403, 442, 501, 527, 564, 611, 663, 668, 799, 806, 884, 1002, 1054, 1209, 1222, 1326, 1457, 1581, 1598, 1612, 1833, 2004, 2108, 2171, 2397, 2418, 2444, 2652, 2839, 2914, 3162, 3196, 3666, 4342, 4371, 4794, 4836, 5177, 5678, 5828, 6324, 6513, 6851, 7332, 7849, 8517, 8684, 8742, 9588, 10354, 10387, 11356, 13026, 13702, 15531, 15698, 17034, 17484, 18941, 20553, 20708, 20774, 23547, 24769, 26052, 27404, 31062, 31161, 31396, 34068, 36907, 37882, 41106, 41548, 47094, 49538, 56823, 62124, 62322, 67301, 73814, 74307, 75764, 82212, 88009, 94188, 99076, 102037, 110721, 113646, 124644, 133433, 134602, 147628, 148614, 176018, 201903, 204074, 221442, 227292, 243319, 264027, 266866, 269204, 297228, 306111, 321997, 352036, 400299, 403806, 408148, 442884, 486638, 528054, 533732, 612222, 643994, 729957, 800598, 807612, 965991, 973276, 1056108, 1144117, 1224444, 1287988, 1459914, 1601196, 1734629, 1931982, 2288234, 2919828, 3163147, 3432351, 3469258, 3863964, 4136423, 4576468, 5203887, 6326294, 6864702, 6938516, 8272846, 9489441, 10407774, 12409269, 12652588, 13729404, 16545692, 18978882, 20815548, 24818538, 37957764, 49637076, 53773499, 107546998, 161320497, 215093996, 322640994, 645281988]

約数ペア:

[(1, 645281988), (2, 322640994), (3, 215093996), (4, 161320497), (6, 107546998), (12, 53773499), (13, 49637076), (17, 37957764), (26, 24818538), (31, 20815548), (34, 18978882), (39, 16545692), (47, 13729404), (51, 12652588), (52, 12409269), (62, 10407774), (68, 9489441), (78, 8272846), (93, 6938516), (94, 6864702), (102, 6326294), (124, 5203887), (141, 4576468), (156, 4136423), (167, 3863964), (186, 3469258), (188, 3432351), (204, 3163147), (221, 2919828), (282, 2288234), (334, 1931982), (372, 1734629), (403, 1601196), (442, 1459914), (501, 1287988), (527, 1224444), (564, 1144117), (611, 1056108), (663, 973276), (668, 965991), (799, 807612), (806, 800598), (884, 729957), (1002, 643994), (1054, 612222), (1209, 533732), (1222, 528054), (1326, 486638), (1457, 442884), (1581, 408148), (1598, 403806), (1612, 400299), (1833, 352036), (2004, 321997), (2108, 306111), (2171, 297228), (2397, 269204), (2418, 266866), (2444, 264027), (2652, 243319), (2839, 227292), (2914, 221442), (3162, 204074), (3196, 201903), (3666, 176018), (4342, 148614), (4371, 147628), (4794, 134602), (4836, 133433), (5177, 124644), (5678, 113646), (5828, 110721), (6324, 102037), (6513, 99076), (6851, 94188), (7332, 88009), (7849, 82212), (8517, 75764), (8684, 74307), (8742, 73814), (9588, 67301), (10354, 62322), (10387, 62124), (11356, 56823), (13026, 49538), (13702, 47094), (15531, 41548), (15698, 41106), (17034, 37882), (17484, 36907), (18941, 34068), (20553, 31396), (20708, 31161), (20774, 31062), (23547, 27404), (24769, 26052)]