131187780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{431}}^1$

素因数の和:554

約数の個数: 144

約数和(自身を含む): 424569600

約数和(自身を除く): 293381820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 89, 90, 95, 114, 171, 178, 180, 190, 228, 267, 285, 342, 356, 380, 431, 445, 534, 570, 684, 801, 855, 862, 890, 1068, 1140, 1293, 1335, 1602, 1691, 1710, 1724, 1780, 2155, 2586, 2670, 3204, 3382, 3420, 3879, 4005, 4310, 5073, 5172, 5340, 6465, 6764, 7758, 8010, 8189, 8455, 8620, 10146, 12930, 15219, 15516, 16020, 16378, 16910, 19395, 20292, 24567, 25365, 25860, 30438, 32756, 33820, 38359, 38790, 40945, 49134, 50730, 60876, 73701, 76095, 76718, 77580, 81890, 98268, 101460, 115077, 122835, 147402, 152190, 153436, 163780, 191795, 230154, 245670, 294804, 304380, 345231, 368505, 383590, 460308, 491340, 575385, 690462, 728821, 737010, 767180, 1150770, 1380924, 1457642, 1474020, 1726155, 2186463, 2301540, 2915284, 3452310, 3644105, 4372926, 6559389, 6904620, 7288210, 8745852, 10932315, 13118778, 14576420, 21864630, 26237556, 32796945, 43729260, 65593890, 131187780]

約数ペア:

[(1, 131187780), (2, 65593890), (3, 43729260), (4, 32796945), (5, 26237556), (6, 21864630), (9, 14576420), (10, 13118778), (12, 10932315), (15, 8745852), (18, 7288210), (19, 6904620), (20, 6559389), (30, 4372926), (36, 3644105), (38, 3452310), (45, 2915284), (57, 2301540), (60, 2186463), (76, 1726155), (89, 1474020), (90, 1457642), (95, 1380924), (114, 1150770), (171, 767180), (178, 737010), (180, 728821), (190, 690462), (228, 575385), (267, 491340), (285, 460308), (342, 383590), (356, 368505), (380, 345231), (431, 304380), (445, 294804), (534, 245670), (570, 230154), (684, 191795), (801, 163780), (855, 153436), (862, 152190), (890, 147402), (1068, 122835), (1140, 115077), (1293, 101460), (1335, 98268), (1602, 81890), (1691, 77580), (1710, 76718), (1724, 76095), (1780, 73701), (2155, 60876), (2586, 50730), (2670, 49134), (3204, 40945), (3382, 38790), (3420, 38359), (3879, 33820), (4005, 32756), (4310, 30438), (5073, 25860), (5172, 25365), (5340, 24567), (6465, 20292), (6764, 19395), (7758, 16910), (8010, 16378), (8189, 16020), (8455, 15516), (8620, 15219), (10146, 12930)]