278424180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1087}}^1\times {\mathrm{1423}}^1$

素因数の和:2525

約数の個数: 72

約数和(自身を含む): 845924352

約数和(自身を除く): 567500172

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1087, 1423, 2174, 2846, 3261, 4269, 4348, 5435, 5692, 6522, 7115, 8538, 9783, 10870, 12807, 13044, 14230, 16305, 17076, 19566, 21345, 21740, 25614, 28460, 32610, 39132, 42690, 48915, 51228, 64035, 65220, 85380, 97830, 128070, 195660, 256140, 1546801, 3093602, 4640403, 6187204, 7734005, 9280806, 13921209, 15468010, 18561612, 23202015, 27842418, 30936020, 46404030, 55684836, 69606045, 92808060, 139212090, 278424180]

約数ペア:

[(1, 278424180), (2, 139212090), (3, 92808060), (4, 69606045), (5, 55684836), (6, 46404030), (9, 30936020), (10, 27842418), (12, 23202015), (15, 18561612), (18, 15468010), (20, 13921209), (30, 9280806), (36, 7734005), (45, 6187204), (60, 4640403), (90, 3093602), (180, 1546801), (1087, 256140), (1423, 195660), (2174, 128070), (2846, 97830), (3261, 85380), (4269, 65220), (4348, 64035), (5435, 51228), (5692, 48915), (6522, 42690), (7115, 39132), (8538, 32610), (9783, 28460), (10870, 25614), (12807, 21740), (13044, 21345), (14230, 19566), (16305, 17076)]