31580800

素因数分解:

$2^7\times 5^2\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:234

約数の個数: 96

約数和(自身を含む): 79682400

約数和(自身を除く): 48101600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 71, 80, 100, 128, 139, 142, 160, 200, 278, 284, 320, 355, 400, 556, 568, 640, 695, 710, 800, 1112, 1136, 1390, 1420, 1600, 1775, 2224, 2272, 2780, 2840, 3200, 3475, 3550, 4448, 4544, 5560, 5680, 6950, 7100, 8896, 9088, 9869, 11120, 11360, 13900, 14200, 17792, 19738, 22240, 22720, 27800, 28400, 39476, 44480, 45440, 49345, 55600, 56800, 78952, 88960, 98690, 111200, 113600, 157904, 197380, 222400, 227200, 246725, 315808, 394760, 444800, 493450, 631616, 789520, 986900, 1263232, 1579040, 1973800, 3158080, 3947600, 6316160, 7895200, 15790400, 31580800]

約数ペア:

[(1, 31580800), (2, 15790400), (4, 7895200), (5, 6316160), (8, 3947600), (10, 3158080), (16, 1973800), (20, 1579040), (25, 1263232), (32, 986900), (40, 789520), (50, 631616), (64, 493450), (71, 444800), (80, 394760), (100, 315808), (128, 246725), (139, 227200), (142, 222400), (160, 197380), (200, 157904), (278, 113600), (284, 111200), (320, 98690), (355, 88960), (400, 78952), (556, 56800), (568, 55600), (640, 49345), (695, 45440), (710, 44480), (800, 39476), (1112, 28400), (1136, 27800), (1390, 22720), (1420, 22240), (1600, 19738), (1775, 17792), (2224, 14200), (2272, 13900), (2780, 11360), (2840, 11120), (3200, 9869), (3475, 9088), (3550, 8896), (4448, 7100), (4544, 6950), (5560, 5680)]