278623722

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{1889}}^1$

素因数の和:1999

約数の個数: 64

約数和(自身を含む): 629959680

約数和(自身を除く): 351335958

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 61, 62, 78, 93, 122, 183, 186, 366, 403, 793, 806, 1209, 1586, 1889, 1891, 2379, 2418, 3778, 3782, 4758, 5667, 5673, 11334, 11346, 24557, 24583, 49114, 49166, 58559, 73671, 73749, 115229, 117118, 147342, 147498, 175677, 230458, 345687, 351354, 691374, 761267, 1497977, 1522534, 2283801, 2995954, 3572099, 4493931, 4567602, 7144198, 8987862, 10716297, 21432594, 46437287, 92874574, 139311861, 278623722]

約数ペア:

[(1, 278623722), (2, 139311861), (3, 92874574), (6, 46437287), (13, 21432594), (26, 10716297), (31, 8987862), (39, 7144198), (61, 4567602), (62, 4493931), (78, 3572099), (93, 2995954), (122, 2283801), (183, 1522534), (186, 1497977), (366, 761267), (403, 691374), (793, 351354), (806, 345687), (1209, 230458), (1586, 175677), (1889, 147498), (1891, 147342), (2379, 117118), (2418, 115229), (3778, 73749), (3782, 73671), (4758, 58559), (5667, 49166), (5673, 49114), (11334, 24583), (11346, 24557)]