81422460

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{64621}}^1$

素因数の和:64643

約数の個数: 72

約数和(自身を含む): 282268896

約数和(自身を除く): 200846436

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 64621, 129242, 193863, 258484, 323105, 387726, 452347, 581589, 646210, 775452, 904694, 969315, 1163178, 1292420, 1357041, 1809388, 1938630, 2261735, 2326356, 2714082, 2907945, 3877260, 4071123, 4523470, 5428164, 5815890, 6785205, 8142246, 9046940, 11631780, 13570410, 16284492, 20355615, 27140820, 40711230, 81422460]

約数ペア:

[(1, 81422460), (2, 40711230), (3, 27140820), (4, 20355615), (5, 16284492), (6, 13570410), (7, 11631780), (9, 9046940), (10, 8142246), (12, 6785205), (14, 5815890), (15, 5428164), (18, 4523470), (20, 4071123), (21, 3877260), (28, 2907945), (30, 2714082), (35, 2326356), (36, 2261735), (42, 1938630), (45, 1809388), (60, 1357041), (63, 1292420), (70, 1163178), (84, 969315), (90, 904694), (105, 775452), (126, 646210), (140, 581589), (180, 452347), (210, 387726), (252, 323105), (315, 258484), (420, 193863), (630, 129242), (1260, 64621)]