15780458720

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{54581}}^1$

素因数の和:54748

約数の個数: 96

約数和(自身を含む): 40438712160

約数和(自身を除く): 24658253440

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 139, 160, 208, 260, 278, 416, 520, 556, 695, 1040, 1112, 1390, 1807, 2080, 2224, 2780, 3614, 4448, 5560, 7228, 9035, 11120, 14456, 18070, 22240, 28912, 36140, 54581, 57824, 72280, 109162, 144560, 218324, 272905, 289120, 436648, 545810, 709553, 873296, 1091620, 1419106, 1746592, 2183240, 2838212, 3547765, 4366480, 5676424, 7095530, 7586759, 8732960, 11352848, 14191060, 15173518, 22705696, 28382120, 30347036, 37933795, 56764240, 60694072, 75867590, 98627867, 113528480, 121388144, 151735180, 197255734, 242776288, 303470360, 394511468, 493139335, 606940720, 789022936, 986278670, 1213881440, 1578045872, 1972557340, 3156091744, 3945114680, 7890229360, 15780458720]

約数ペア:

[(1, 15780458720), (2, 7890229360), (4, 3945114680), (5, 3156091744), (8, 1972557340), (10, 1578045872), (13, 1213881440), (16, 986278670), (20, 789022936), (26, 606940720), (32, 493139335), (40, 394511468), (52, 303470360), (65, 242776288), (80, 197255734), (104, 151735180), (130, 121388144), (139, 113528480), (160, 98627867), (208, 75867590), (260, 60694072), (278, 56764240), (416, 37933795), (520, 30347036), (556, 28382120), (695, 22705696), (1040, 15173518), (1112, 14191060), (1390, 11352848), (1807, 8732960), (2080, 7586759), (2224, 7095530), (2780, 5676424), (3614, 4366480), (4448, 3547765), (5560, 2838212), (7228, 2183240), (9035, 1746592), (11120, 1419106), (14456, 1091620), (18070, 873296), (22240, 709553), (28912, 545810), (36140, 436648), (54581, 289120), (57824, 272905), (72280, 218324), (109162, 144560)]