81126780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{419}}^1\times {\mathrm{461}}^1$

素因数の和:899

約数の個数: 96

約数和(自身を含む): 260789760

約数和(自身を除く): 179662980

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 419, 420, 461, 838, 922, 1257, 1383, 1676, 1844, 2095, 2305, 2514, 2766, 2933, 3227, 4190, 4610, 5028, 5532, 5866, 6285, 6454, 6915, 8380, 8799, 9220, 9681, 11732, 12570, 12908, 13830, 14665, 16135, 17598, 19362, 25140, 27660, 29330, 32270, 35196, 38724, 43995, 48405, 58660, 64540, 87990, 96810, 175980, 193159, 193620, 386318, 579477, 772636, 965795, 1158954, 1352113, 1931590, 2317908, 2704226, 2897385, 3863180, 4056339, 5408452, 5794770, 6760565, 8112678, 11589540, 13521130, 16225356, 20281695, 27042260, 40563390, 81126780]

約数ペア:

[(1, 81126780), (2, 40563390), (3, 27042260), (4, 20281695), (5, 16225356), (6, 13521130), (7, 11589540), (10, 8112678), (12, 6760565), (14, 5794770), (15, 5408452), (20, 4056339), (21, 3863180), (28, 2897385), (30, 2704226), (35, 2317908), (42, 1931590), (60, 1352113), (70, 1158954), (84, 965795), (105, 772636), (140, 579477), (210, 386318), (419, 193620), (420, 193159), (461, 175980), (838, 96810), (922, 87990), (1257, 64540), (1383, 58660), (1676, 48405), (1844, 43995), (2095, 38724), (2305, 35196), (2514, 32270), (2766, 29330), (2933, 27660), (3227, 25140), (4190, 19362), (4610, 17598), (5028, 16135), (5532, 14665), (5866, 13830), (6285, 12908), (6454, 12570), (6915, 11732), (8380, 9681), (8799, 9220)]