31427800

素因数分解:

$2^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1$

素因数の和:221

約数の個数: 96

約数和(自身を含む): 78030720

約数和(自身を除く): 46602920

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 37, 40, 50, 62, 74, 100, 124, 137, 148, 155, 185, 200, 248, 274, 296, 310, 370, 548, 620, 685, 740, 775, 925, 1096, 1147, 1240, 1370, 1480, 1550, 1850, 2294, 2740, 3100, 3425, 3700, 4247, 4588, 5069, 5480, 5735, 6200, 6850, 7400, 8494, 9176, 10138, 11470, 13700, 16988, 20276, 21235, 22940, 25345, 27400, 28675, 33976, 40552, 42470, 45880, 50690, 57350, 84940, 101380, 106175, 114700, 126725, 157139, 169880, 202760, 212350, 229400, 253450, 314278, 424700, 506900, 628556, 785695, 849400, 1013800, 1257112, 1571390, 3142780, 3928475, 6285560, 7856950, 15713900, 31427800]

約数ペア:

[(1, 31427800), (2, 15713900), (4, 7856950), (5, 6285560), (8, 3928475), (10, 3142780), (20, 1571390), (25, 1257112), (31, 1013800), (37, 849400), (40, 785695), (50, 628556), (62, 506900), (74, 424700), (100, 314278), (124, 253450), (137, 229400), (148, 212350), (155, 202760), (185, 169880), (200, 157139), (248, 126725), (274, 114700), (296, 106175), (310, 101380), (370, 84940), (548, 57350), (620, 50690), (685, 45880), (740, 42470), (775, 40552), (925, 33976), (1096, 28675), (1147, 27400), (1240, 25345), (1370, 22940), (1480, 21235), (1550, 20276), (1850, 16988), (2294, 13700), (2740, 11470), (3100, 10138), (3425, 9176), (3700, 8494), (4247, 7400), (4588, 6850), (5069, 6200), (5480, 5735)]