15780488

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1$

素因数の和:270

約数の個数: 64

約数和(自身を含む): 34214400

約数和(自身を除く): 18433912

約数列:

[1, 2, 4, 8, 17, 19, 31, 34, 38, 62, 68, 76, 124, 136, 152, 197, 248, 323, 394, 527, 589, 646, 788, 1054, 1178, 1292, 1576, 2108, 2356, 2584, 3349, 3743, 4216, 4712, 6107, 6698, 7486, 10013, 12214, 13396, 14972, 20026, 24428, 26792, 29944, 40052, 48856, 63631, 80104, 103819, 116033, 127262, 207638, 232066, 254524, 415276, 464132, 509048, 830552, 928264, 1972561, 3945122, 7890244, 15780488]

約数ペア:

[(1, 15780488), (2, 7890244), (4, 3945122), (8, 1972561), (17, 928264), (19, 830552), (31, 509048), (34, 464132), (38, 415276), (62, 254524), (68, 232066), (76, 207638), (124, 127262), (136, 116033), (152, 103819), (197, 80104), (248, 63631), (323, 48856), (394, 40052), (527, 29944), (589, 26792), (646, 24428), (788, 20026), (1054, 14972), (1178, 13396), (1292, 12214), (1576, 10013), (2108, 7486), (2356, 6698), (2584, 6107), (3349, 4712), (3743, 4216)]