217564928

素因数分解:

$2^8\times 7^1\times {\mathrm{167}}^1\times {\mathrm{727}}^1$

素因数の和:917

約数の個数: 72

約数和(自身を含む): 499978752

約数和(自身を除く): 282413824

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 167, 224, 256, 334, 448, 668, 727, 896, 1169, 1336, 1454, 1792, 2338, 2672, 2908, 4676, 5089, 5344, 5816, 9352, 10178, 10688, 11632, 18704, 20356, 21376, 23264, 37408, 40712, 42752, 46528, 74816, 81424, 93056, 121409, 149632, 162848, 186112, 242818, 299264, 325696, 485636, 651392, 849863, 971272, 1302784, 1699726, 1942544, 3399452, 3885088, 6798904, 7770176, 13597808, 15540352, 27195616, 31080704, 54391232, 108782464, 217564928]

約数ペア:

[(1, 217564928), (2, 108782464), (4, 54391232), (7, 31080704), (8, 27195616), (14, 15540352), (16, 13597808), (28, 7770176), (32, 6798904), (56, 3885088), (64, 3399452), (112, 1942544), (128, 1699726), (167, 1302784), (224, 971272), (256, 849863), (334, 651392), (448, 485636), (668, 325696), (727, 299264), (896, 242818), (1169, 186112), (1336, 162848), (1454, 149632), (1792, 121409), (2338, 93056), (2672, 81424), (2908, 74816), (4676, 46528), (5089, 42752), (5344, 40712), (5816, 37408), (9352, 23264), (10178, 21376), (10688, 20356), (11632, 18704)]