18438700

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:152

約数の個数: 108

約数和(自身を含む): 48090672

約数和(自身を除く): 29651972

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 53, 70, 71, 98, 100, 106, 140, 142, 175, 196, 212, 245, 265, 284, 350, 355, 371, 490, 497, 530, 700, 710, 742, 980, 994, 1060, 1225, 1325, 1420, 1484, 1775, 1855, 1988, 2450, 2485, 2597, 2650, 3479, 3550, 3710, 3763, 4900, 4970, 5194, 5300, 6958, 7100, 7420, 7526, 9275, 9940, 10388, 12425, 12985, 13916, 15052, 17395, 18550, 18815, 24850, 25970, 26341, 34790, 37100, 37630, 49700, 51940, 52682, 64925, 69580, 75260, 86975, 94075, 105364, 129850, 131705, 173950, 184387, 188150, 259700, 263410, 347900, 368774, 376300, 526820, 658525, 737548, 921935, 1317050, 1843870, 2634100, 3687740, 4609675, 9219350, 18438700]

約数ペア:

[(1, 18438700), (2, 9219350), (4, 4609675), (5, 3687740), (7, 2634100), (10, 1843870), (14, 1317050), (20, 921935), (25, 737548), (28, 658525), (35, 526820), (49, 376300), (50, 368774), (53, 347900), (70, 263410), (71, 259700), (98, 188150), (100, 184387), (106, 173950), (140, 131705), (142, 129850), (175, 105364), (196, 94075), (212, 86975), (245, 75260), (265, 69580), (284, 64925), (350, 52682), (355, 51940), (371, 49700), (490, 37630), (497, 37100), (530, 34790), (700, 26341), (710, 25970), (742, 24850), (980, 18815), (994, 18550), (1060, 17395), (1225, 15052), (1325, 13916), (1420, 12985), (1484, 12425), (1775, 10388), (1855, 9940), (1988, 9275), (2450, 7526), (2485, 7420), (2597, 7100), (2650, 6958), (3479, 5300), (3550, 5194), (3710, 4970), (3763, 4900)]