71989760

素因数分解:

$2^9\times 5^1\times {\mathrm{61}}^1\times {\mathrm{461}}^1$

素因数の和:545

約数の個数: 80

約数和(自身を含む): 175816872

約数和(自身を除く): 103827112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 244, 256, 305, 320, 461, 488, 512, 610, 640, 922, 976, 1220, 1280, 1844, 1952, 2305, 2440, 2560, 3688, 3904, 4610, 4880, 7376, 7808, 9220, 9760, 14752, 15616, 18440, 19520, 28121, 29504, 31232, 36880, 39040, 56242, 59008, 73760, 78080, 112484, 118016, 140605, 147520, 156160, 224968, 236032, 281210, 295040, 449936, 562420, 590080, 899872, 1124840, 1180160, 1799744, 2249680, 3599488, 4499360, 7198976, 8998720, 14397952, 17997440, 35994880, 71989760]

約数ペア:

[(1, 71989760), (2, 35994880), (4, 17997440), (5, 14397952), (8, 8998720), (10, 7198976), (16, 4499360), (20, 3599488), (32, 2249680), (40, 1799744), (61, 1180160), (64, 1124840), (80, 899872), (122, 590080), (128, 562420), (160, 449936), (244, 295040), (256, 281210), (305, 236032), (320, 224968), (461, 156160), (488, 147520), (512, 140605), (610, 118016), (640, 112484), (922, 78080), (976, 73760), (1220, 59008), (1280, 56242), (1844, 39040), (1952, 36880), (2305, 31232), (2440, 29504), (2560, 28121), (3688, 19520), (3904, 18440), (4610, 15616), (4880, 14752), (7376, 9760), (7808, 9220)]