199542400

素因数分解:

$2^7\times 5^2\times {\mathrm{127}}^1\times {\mathrm{491}}^1$

素因数の和:642

約数の個数: 96

約数和(自身を含む): 497825280

約数和(自身を除く): 298282880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 127, 128, 160, 200, 254, 320, 400, 491, 508, 635, 640, 800, 982, 1016, 1270, 1600, 1964, 2032, 2455, 2540, 3175, 3200, 3928, 4064, 4910, 5080, 6350, 7856, 8128, 9820, 10160, 12275, 12700, 15712, 16256, 19640, 20320, 24550, 25400, 31424, 39280, 40640, 49100, 50800, 62357, 62848, 78560, 81280, 98200, 101600, 124714, 157120, 196400, 203200, 249428, 311785, 314240, 392800, 406400, 498856, 623570, 785600, 997712, 1247140, 1558925, 1571200, 1995424, 2494280, 3117850, 3990848, 4988560, 6235700, 7981696, 9977120, 12471400, 19954240, 24942800, 39908480, 49885600, 99771200, 199542400]

約数ペア:

[(1, 199542400), (2, 99771200), (4, 49885600), (5, 39908480), (8, 24942800), (10, 19954240), (16, 12471400), (20, 9977120), (25, 7981696), (32, 6235700), (40, 4988560), (50, 3990848), (64, 3117850), (80, 2494280), (100, 1995424), (127, 1571200), (128, 1558925), (160, 1247140), (200, 997712), (254, 785600), (320, 623570), (400, 498856), (491, 406400), (508, 392800), (635, 314240), (640, 311785), (800, 249428), (982, 203200), (1016, 196400), (1270, 157120), (1600, 124714), (1964, 101600), (2032, 98200), (2455, 81280), (2540, 78560), (3175, 62848), (3200, 62357), (3928, 50800), (4064, 49100), (4910, 40640), (5080, 39280), (6350, 31424), (7856, 25400), (8128, 24550), (9820, 20320), (10160, 19640), (12275, 16256), (12700, 15712)]