287657968

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{379}}^1$

素因数の和:530

約数の個数: 80

約数和(自身を含む): 623397600

約数和(自身を除く): 335739632

約数列:

[1, 2, 4, 8, 13, 16, 26, 41, 52, 82, 89, 104, 164, 178, 208, 328, 356, 379, 533, 656, 712, 758, 1066, 1157, 1424, 1516, 2132, 2314, 3032, 3649, 4264, 4628, 4927, 6064, 7298, 8528, 9256, 9854, 14596, 15539, 18512, 19708, 29192, 31078, 33731, 39416, 47437, 58384, 62156, 67462, 78832, 94874, 124312, 134924, 189748, 202007, 248624, 269848, 379496, 404014, 438503, 539696, 758992, 808028, 877006, 1382971, 1616056, 1754012, 2765942, 3232112, 3508024, 5531884, 7016048, 11063768, 17978623, 22127536, 35957246, 71914492, 143828984, 287657968]

約数ペア:

[(1, 287657968), (2, 143828984), (4, 71914492), (8, 35957246), (13, 22127536), (16, 17978623), (26, 11063768), (41, 7016048), (52, 5531884), (82, 3508024), (89, 3232112), (104, 2765942), (164, 1754012), (178, 1616056), (208, 1382971), (328, 877006), (356, 808028), (379, 758992), (533, 539696), (656, 438503), (712, 404014), (758, 379496), (1066, 269848), (1157, 248624), (1424, 202007), (1516, 189748), (2132, 134924), (2314, 124312), (3032, 94874), (3649, 78832), (4264, 67462), (4628, 62156), (4927, 58384), (6064, 47437), (7298, 39416), (8528, 33731), (9256, 31078), (9854, 29192), (14596, 19708), (15539, 18512)]