161267820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2887}}^1$

素因数の和:2932

約数の個数: 144

約数和(自身を含む): 553109760

約数和(自身を除く): 391841940

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 49, 57, 60, 70, 76, 84, 95, 98, 105, 114, 133, 140, 147, 190, 196, 210, 228, 245, 266, 285, 294, 380, 399, 420, 490, 532, 570, 588, 665, 735, 798, 931, 980, 1140, 1330, 1470, 1596, 1862, 1995, 2660, 2793, 2887, 2940, 3724, 3990, 4655, 5586, 5774, 7980, 8661, 9310, 11172, 11548, 13965, 14435, 17322, 18620, 20209, 27930, 28870, 34644, 40418, 43305, 54853, 55860, 57740, 60627, 80836, 86610, 101045, 109706, 121254, 141463, 164559, 173220, 202090, 219412, 242508, 274265, 282926, 303135, 329118, 383971, 404180, 424389, 548530, 565852, 606270, 658236, 707315, 767942, 822795, 848778, 1097060, 1151913, 1212540, 1414630, 1535884, 1645590, 1697556, 1919855, 2121945, 2303826, 2687797, 2829260, 3291180, 3839710, 4243890, 4607652, 5375594, 5759565, 7679420, 8063391, 8487780, 10751188, 11519130, 13438985, 16126782, 23038260, 26877970, 32253564, 40316955, 53755940, 80633910, 161267820]

約数ペア:

[(1, 161267820), (2, 80633910), (3, 53755940), (4, 40316955), (5, 32253564), (6, 26877970), (7, 23038260), (10, 16126782), (12, 13438985), (14, 11519130), (15, 10751188), (19, 8487780), (20, 8063391), (21, 7679420), (28, 5759565), (30, 5375594), (35, 4607652), (38, 4243890), (42, 3839710), (49, 3291180), (57, 2829260), (60, 2687797), (70, 2303826), (76, 2121945), (84, 1919855), (95, 1697556), (98, 1645590), (105, 1535884), (114, 1414630), (133, 1212540), (140, 1151913), (147, 1097060), (190, 848778), (196, 822795), (210, 767942), (228, 707315), (245, 658236), (266, 606270), (285, 565852), (294, 548530), (380, 424389), (399, 404180), (420, 383971), (490, 329118), (532, 303135), (570, 282926), (588, 274265), (665, 242508), (735, 219412), (798, 202090), (931, 173220), (980, 164559), (1140, 141463), (1330, 121254), (1470, 109706), (1596, 101045), (1862, 86610), (1995, 80836), (2660, 60627), (2793, 57740), (2887, 55860), (2940, 54853), (3724, 43305), (3990, 40418), (4655, 34644), (5586, 28870), (5774, 27930), (7980, 20209), (8661, 18620), (9310, 17322), (11172, 14435), (11548, 13965)]