245236784

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{521}}^1$

素因数の和:646

約数の個数: 80

約数和(自身を含む): 536465664

約数和(自身を除く): 291228880

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 73, 104, 124, 146, 208, 248, 292, 403, 496, 521, 584, 806, 949, 1042, 1168, 1612, 1898, 2084, 2263, 3224, 3796, 4168, 4526, 6448, 6773, 7592, 8336, 9052, 13546, 15184, 16151, 18104, 27092, 29419, 32302, 36208, 38033, 54184, 58838, 64604, 76066, 108368, 117676, 129208, 152132, 209963, 235352, 258416, 304264, 419926, 470704, 494429, 608528, 839852, 988858, 1179023, 1679704, 1977716, 2358046, 3359408, 3955432, 4716092, 7910864, 9432184, 15327299, 18864368, 30654598, 61309196, 122618392, 245236784]

約数ペア:

[(1, 245236784), (2, 122618392), (4, 61309196), (8, 30654598), (13, 18864368), (16, 15327299), (26, 9432184), (31, 7910864), (52, 4716092), (62, 3955432), (73, 3359408), (104, 2358046), (124, 1977716), (146, 1679704), (208, 1179023), (248, 988858), (292, 839852), (403, 608528), (496, 494429), (521, 470704), (584, 419926), (806, 304264), (949, 258416), (1042, 235352), (1168, 209963), (1612, 152132), (1898, 129208), (2084, 117676), (2263, 108368), (3224, 76066), (3796, 64604), (4168, 58838), (4526, 54184), (6448, 38033), (6773, 36208), (7592, 32302), (8336, 29419), (9052, 27092), (13546, 18104), (15184, 16151)]