31369240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4871}}^1$

素因数の和:4912

約数の個数: 64

約数和(自身を含む): 84188160

約数和(自身を除く): 52818920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 644, 805, 920, 1288, 1610, 3220, 4871, 6440, 9742, 19484, 24355, 34097, 38968, 48710, 68194, 97420, 112033, 136388, 170485, 194840, 224066, 272776, 340970, 448132, 560165, 681940, 784231, 896264, 1120330, 1363880, 1568462, 2240660, 3136924, 3921155, 4481320, 6273848, 7842310, 15684620, 31369240]

約数ペア:

[(1, 31369240), (2, 15684620), (4, 7842310), (5, 6273848), (7, 4481320), (8, 3921155), (10, 3136924), (14, 2240660), (20, 1568462), (23, 1363880), (28, 1120330), (35, 896264), (40, 784231), (46, 681940), (56, 560165), (70, 448132), (92, 340970), (115, 272776), (140, 224066), (161, 194840), (184, 170485), (230, 136388), (280, 112033), (322, 97420), (460, 68194), (644, 48710), (805, 38968), (920, 34097), (1288, 24355), (1610, 19484), (3220, 9742), (4871, 6440)]