247996816

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1021}}^1$

素因数の和:1112

約数の個数: 80

約数和(自身を含む): 547464960

約数和(自身を除く): 299468144

約数列:

[1, 2, 4, 8, 16, 17, 19, 34, 38, 47, 68, 76, 94, 136, 152, 188, 272, 304, 323, 376, 646, 752, 799, 893, 1021, 1292, 1598, 1786, 2042, 2584, 3196, 3572, 4084, 5168, 6392, 7144, 8168, 12784, 14288, 15181, 16336, 17357, 19399, 30362, 34714, 38798, 47987, 60724, 69428, 77596, 95974, 121448, 138856, 155192, 191948, 242896, 277712, 310384, 329783, 383896, 659566, 767792, 815779, 911753, 1319132, 1631558, 1823506, 2638264, 3263116, 3647012, 5276528, 6526232, 7294024, 13052464, 14588048, 15499801, 30999602, 61999204, 123998408, 247996816]

約数ペア:

[(1, 247996816), (2, 123998408), (4, 61999204), (8, 30999602), (16, 15499801), (17, 14588048), (19, 13052464), (34, 7294024), (38, 6526232), (47, 5276528), (68, 3647012), (76, 3263116), (94, 2638264), (136, 1823506), (152, 1631558), (188, 1319132), (272, 911753), (304, 815779), (323, 767792), (376, 659566), (646, 383896), (752, 329783), (799, 310384), (893, 277712), (1021, 242896), (1292, 191948), (1598, 155192), (1786, 138856), (2042, 121448), (2584, 95974), (3196, 77596), (3572, 69428), (4084, 60724), (5168, 47987), (6392, 38798), (7144, 34714), (8168, 30362), (12784, 19399), (14288, 17357), (15181, 16336)]