221185680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{491}}^1\times {\mathrm{1877}}^1$

素因数の和:2384

約数の個数: 80

約数和(自身を含む): 687438144

約数和(自身を除く): 466252464

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 491, 982, 1473, 1877, 1964, 2455, 2946, 3754, 3928, 4910, 5631, 5892, 7365, 7508, 7856, 9385, 9820, 11262, 11784, 14730, 15016, 18770, 19640, 22524, 23568, 28155, 29460, 30032, 37540, 39280, 45048, 56310, 58920, 75080, 90096, 112620, 117840, 150160, 225240, 450480, 921607, 1843214, 2764821, 3686428, 4608035, 5529642, 7372856, 9216070, 11059284, 13824105, 14745712, 18432140, 22118568, 27648210, 36864280, 44237136, 55296420, 73728560, 110592840, 221185680]

約数ペア:

[(1, 221185680), (2, 110592840), (3, 73728560), (4, 55296420), (5, 44237136), (6, 36864280), (8, 27648210), (10, 22118568), (12, 18432140), (15, 14745712), (16, 13824105), (20, 11059284), (24, 9216070), (30, 7372856), (40, 5529642), (48, 4608035), (60, 3686428), (80, 2764821), (120, 1843214), (240, 921607), (491, 450480), (982, 225240), (1473, 150160), (1877, 117840), (1964, 112620), (2455, 90096), (2946, 75080), (3754, 58920), (3928, 56310), (4910, 45048), (5631, 39280), (5892, 37540), (7365, 30032), (7508, 29460), (7856, 28155), (9385, 23568), (9820, 22524), (11262, 19640), (11784, 18770), (14730, 15016)]