18978261504

素因数分解:

$2^9\times 3^1\times {\mathrm{31}}^1\times {\mathrm{398569}}^1$

素因数の和:398621

約数の個数: 80

約数和(自身を含む): 52190350080

約数和(自身を除く): 33212088576

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 31, 32, 48, 62, 64, 93, 96, 124, 128, 186, 192, 248, 256, 372, 384, 496, 512, 744, 768, 992, 1488, 1536, 1984, 2976, 3968, 5952, 7936, 11904, 15872, 23808, 47616, 398569, 797138, 1195707, 1594276, 2391414, 3188552, 4782828, 6377104, 9565656, 12355639, 12754208, 19131312, 24711278, 25508416, 37066917, 38262624, 49422556, 51016832, 74133834, 76525248, 98845112, 102033664, 148267668, 153050496, 197690224, 204067328, 296535336, 306100992, 395380448, 593070672, 612201984, 790760896, 1186141344, 1581521792, 2372282688, 3163043584, 4744565376, 6326087168, 9489130752, 18978261504]

約数ペア:

[(1, 18978261504), (2, 9489130752), (3, 6326087168), (4, 4744565376), (6, 3163043584), (8, 2372282688), (12, 1581521792), (16, 1186141344), (24, 790760896), (31, 612201984), (32, 593070672), (48, 395380448), (62, 306100992), (64, 296535336), (93, 204067328), (96, 197690224), (124, 153050496), (128, 148267668), (186, 102033664), (192, 98845112), (248, 76525248), (256, 74133834), (372, 51016832), (384, 49422556), (496, 38262624), (512, 37066917), (744, 25508416), (768, 24711278), (992, 19131312), (1488, 12754208), (1536, 12355639), (1984, 9565656), (2976, 6377104), (3968, 4782828), (5952, 3188552), (7936, 2391414), (11904, 1594276), (15872, 1195707), (23808, 797138), (47616, 398569)]