400444740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1427}}^1\times {\mathrm{1559}}^1$

素因数の和:3001

約数の個数: 72

約数和(自身を含む): 1216313280

約数和(自身を除く): 815868540

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1427, 1559, 2854, 3118, 4281, 4677, 5708, 6236, 7135, 7795, 8562, 9354, 12843, 14031, 14270, 15590, 17124, 18708, 21405, 23385, 25686, 28062, 28540, 31180, 42810, 46770, 51372, 56124, 64215, 70155, 85620, 93540, 128430, 140310, 256860, 280620, 2224693, 4449386, 6674079, 8898772, 11123465, 13348158, 20022237, 22246930, 26696316, 33370395, 40044474, 44493860, 66740790, 80088948, 100111185, 133481580, 200222370, 400444740]

約数ペア:

[(1, 400444740), (2, 200222370), (3, 133481580), (4, 100111185), (5, 80088948), (6, 66740790), (9, 44493860), (10, 40044474), (12, 33370395), (15, 26696316), (18, 22246930), (20, 20022237), (30, 13348158), (36, 11123465), (45, 8898772), (60, 6674079), (90, 4449386), (180, 2224693), (1427, 280620), (1559, 256860), (2854, 140310), (3118, 128430), (4281, 93540), (4677, 85620), (5708, 70155), (6236, 64215), (7135, 56124), (7795, 51372), (8562, 46770), (9354, 42810), (12843, 31180), (14031, 28540), (14270, 28062), (15590, 25686), (17124, 23385), (18708, 21405)]