280131012

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{8753}}^1$

素因数の和:8897

約数の個数: 72

約数和(自身を含む): 815732736

約数和(自身を除く): 535601724

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 127, 252, 254, 381, 508, 762, 889, 1143, 1524, 1778, 2286, 2667, 3556, 4572, 5334, 8001, 8753, 10668, 16002, 17506, 26259, 32004, 35012, 52518, 61271, 78777, 105036, 122542, 157554, 183813, 245084, 315108, 367626, 551439, 735252, 1102878, 1111631, 2205756, 2223262, 3334893, 4446524, 6669786, 7781417, 10004679, 13339572, 15562834, 20009358, 23344251, 31125668, 40018716, 46688502, 70032753, 93377004, 140065506, 280131012]

約数ペア:

[(1, 280131012), (2, 140065506), (3, 93377004), (4, 70032753), (6, 46688502), (7, 40018716), (9, 31125668), (12, 23344251), (14, 20009358), (18, 15562834), (21, 13339572), (28, 10004679), (36, 7781417), (42, 6669786), (63, 4446524), (84, 3334893), (126, 2223262), (127, 2205756), (252, 1111631), (254, 1102878), (381, 735252), (508, 551439), (762, 367626), (889, 315108), (1143, 245084), (1524, 183813), (1778, 157554), (2286, 122542), (2667, 105036), (3556, 78777), (4572, 61271), (5334, 52518), (8001, 35012), (8753, 32004), (10668, 26259), (16002, 17506)]