644979478

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1381}}^1$

素因数の和:1501

約数の個数: 64

約数和(自身を含む): 1203600384

約数和(自身を除く): 558620906

約数列:

[1, 2, 11, 13, 22, 23, 26, 46, 71, 142, 143, 253, 286, 299, 506, 598, 781, 923, 1381, 1562, 1633, 1846, 2762, 3266, 3289, 6578, 10153, 15191, 17953, 17963, 20306, 21229, 30382, 31763, 35906, 35926, 42458, 63526, 98051, 196102, 197483, 233519, 349393, 394966, 412919, 467038, 698786, 825838, 1078561, 1274663, 2157122, 2255173, 2549326, 4510346, 4542109, 9084218, 14021293, 24806903, 28042586, 29317249, 49613806, 58634498, 322489739, 644979478]

約数ペア:

[(1, 644979478), (2, 322489739), (11, 58634498), (13, 49613806), (22, 29317249), (23, 28042586), (26, 24806903), (46, 14021293), (71, 9084218), (142, 4542109), (143, 4510346), (253, 2549326), (286, 2255173), (299, 2157122), (506, 1274663), (598, 1078561), (781, 825838), (923, 698786), (1381, 467038), (1562, 412919), (1633, 394966), (1846, 349393), (2762, 233519), (3266, 197483), (3289, 196102), (6578, 98051), (10153, 63526), (15191, 42458), (17953, 35926), (17963, 35906), (20306, 31763), (21229, 30382)]