257302920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{43759}}^1$

素因数の和:43787

約数の個数: 96

約数和(自身を含む): 897955200

約数和(自身を除く): 640652280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 84, 98, 105, 120, 140, 147, 168, 196, 210, 245, 280, 294, 392, 420, 490, 588, 735, 840, 980, 1176, 1470, 1960, 2940, 5880, 43759, 87518, 131277, 175036, 218795, 262554, 306313, 350072, 437590, 525108, 612626, 656385, 875180, 918939, 1050216, 1225252, 1312770, 1531565, 1750360, 1837878, 2144191, 2450504, 2625540, 3063130, 3675756, 4288382, 4594695, 5251080, 6126260, 6432573, 7351512, 8576764, 9189390, 10720955, 12252520, 12865146, 17153528, 18378780, 21441910, 25730292, 32162865, 36757560, 42883820, 51460584, 64325730, 85767640, 128651460, 257302920]

約数ペア:

[(1, 257302920), (2, 128651460), (3, 85767640), (4, 64325730), (5, 51460584), (6, 42883820), (7, 36757560), (8, 32162865), (10, 25730292), (12, 21441910), (14, 18378780), (15, 17153528), (20, 12865146), (21, 12252520), (24, 10720955), (28, 9189390), (30, 8576764), (35, 7351512), (40, 6432573), (42, 6126260), (49, 5251080), (56, 4594695), (60, 4288382), (70, 3675756), (84, 3063130), (98, 2625540), (105, 2450504), (120, 2144191), (140, 1837878), (147, 1750360), (168, 1531565), (196, 1312770), (210, 1225252), (245, 1050216), (280, 918939), (294, 875180), (392, 656385), (420, 612626), (490, 525108), (588, 437590), (735, 350072), (840, 306313), (980, 262554), (1176, 218795), (1470, 175036), (1960, 131277), (2940, 87518), (5880, 43759)]