209911128

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1\times {\mathrm{139}}^1$

素因数の和:345

約数の個数: 128

約数和(自身を含む): 616896000

約数和(自身を除く): 406984872

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 89, 101, 139, 168, 178, 202, 267, 278, 303, 356, 404, 417, 534, 556, 606, 623, 707, 712, 808, 834, 973, 1068, 1112, 1212, 1246, 1414, 1668, 1869, 1946, 2121, 2136, 2424, 2492, 2828, 2919, 3336, 3738, 3892, 4242, 4984, 5656, 5838, 7476, 7784, 8484, 8989, 11676, 12371, 14039, 14952, 16968, 17978, 23352, 24742, 26967, 28078, 35956, 37113, 42117, 49484, 53934, 56156, 62923, 71912, 74226, 84234, 86597, 98273, 98968, 107868, 112312, 125846, 148452, 168468, 173194, 188769, 196546, 215736, 251692, 259791, 294819, 296904, 336936, 346388, 377538, 393092, 503384, 519582, 589638, 692776, 755076, 786184, 1039164, 1179276, 1249471, 1510152, 2078328, 2358552, 2498942, 3748413, 4997884, 7496826, 8746297, 9995768, 14993652, 17492594, 26238891, 29987304, 34985188, 52477782, 69970376, 104955564, 209911128]

約数ペア:

[(1, 209911128), (2, 104955564), (3, 69970376), (4, 52477782), (6, 34985188), (7, 29987304), (8, 26238891), (12, 17492594), (14, 14993652), (21, 9995768), (24, 8746297), (28, 7496826), (42, 4997884), (56, 3748413), (84, 2498942), (89, 2358552), (101, 2078328), (139, 1510152), (168, 1249471), (178, 1179276), (202, 1039164), (267, 786184), (278, 755076), (303, 692776), (356, 589638), (404, 519582), (417, 503384), (534, 393092), (556, 377538), (606, 346388), (623, 336936), (707, 296904), (712, 294819), (808, 259791), (834, 251692), (973, 215736), (1068, 196546), (1112, 188769), (1212, 173194), (1246, 168468), (1414, 148452), (1668, 125846), (1869, 112312), (1946, 107868), (2121, 98968), (2136, 98273), (2424, 86597), (2492, 84234), (2828, 74226), (2919, 71912), (3336, 62923), (3738, 56156), (3892, 53934), (4242, 49484), (4984, 42117), (5656, 37113), (5838, 35956), (7476, 28078), (7784, 26967), (8484, 24742), (8989, 23352), (11676, 17978), (12371, 16968), (14039, 14952)]