81963252

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{71}}^1\times {\mathrm{509}}^1$

素因数の和:603

約数の個数: 120

約数和(自身を含む): 248814720

約数和(自身を除く): 166851468

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 71, 81, 84, 108, 126, 142, 162, 189, 213, 252, 284, 324, 378, 426, 497, 509, 567, 639, 756, 852, 994, 1018, 1134, 1278, 1491, 1527, 1917, 1988, 2036, 2268, 2556, 2982, 3054, 3563, 3834, 4473, 4581, 5751, 5964, 6108, 7126, 7668, 8946, 9162, 10689, 11502, 13419, 13743, 14252, 17892, 18324, 21378, 23004, 26838, 27486, 32067, 36139, 40257, 41229, 42756, 53676, 54972, 64134, 72278, 80514, 82458, 96201, 108417, 128268, 144556, 161028, 164916, 192402, 216834, 252973, 288603, 325251, 384804, 433668, 505946, 577206, 650502, 758919, 975753, 1011892, 1154412, 1301004, 1517838, 1951506, 2276757, 2927259, 3035676, 3903012, 4553514, 5854518, 6830271, 9107028, 11709036, 13660542, 20490813, 27321084, 40981626, 81963252]

約数ペア:

[(1, 81963252), (2, 40981626), (3, 27321084), (4, 20490813), (6, 13660542), (7, 11709036), (9, 9107028), (12, 6830271), (14, 5854518), (18, 4553514), (21, 3903012), (27, 3035676), (28, 2927259), (36, 2276757), (42, 1951506), (54, 1517838), (63, 1301004), (71, 1154412), (81, 1011892), (84, 975753), (108, 758919), (126, 650502), (142, 577206), (162, 505946), (189, 433668), (213, 384804), (252, 325251), (284, 288603), (324, 252973), (378, 216834), (426, 192402), (497, 164916), (509, 161028), (567, 144556), (639, 128268), (756, 108417), (852, 96201), (994, 82458), (1018, 80514), (1134, 72278), (1278, 64134), (1491, 54972), (1527, 53676), (1917, 42756), (1988, 41229), (2036, 40257), (2268, 36139), (2556, 32067), (2982, 27486), (3054, 26838), (3563, 23004), (3834, 21378), (4473, 18324), (4581, 17892), (5751, 14252), (5964, 13743), (6108, 13419), (7126, 11502), (7668, 10689), (8946, 9162)]