179997440

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{20089}}^1$

素因数の和:20117

約数の個数: 72

約数和(自身を含む): 492767520

約数和(自身を除く): 312770080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 560, 640, 896, 1120, 1280, 1792, 2240, 4480, 8960, 20089, 40178, 80356, 100445, 140623, 160712, 200890, 281246, 321424, 401780, 562492, 642848, 703115, 803560, 1124984, 1285696, 1406230, 1607120, 2249968, 2571392, 2812460, 3214240, 4499936, 5142784, 5624920, 6428480, 8999872, 11249840, 12856960, 17999744, 22499680, 25713920, 35999488, 44999360, 89998720, 179997440]

約数ペア:

[(1, 179997440), (2, 89998720), (4, 44999360), (5, 35999488), (7, 25713920), (8, 22499680), (10, 17999744), (14, 12856960), (16, 11249840), (20, 8999872), (28, 6428480), (32, 5624920), (35, 5142784), (40, 4499936), (56, 3214240), (64, 2812460), (70, 2571392), (80, 2249968), (112, 1607120), (128, 1406230), (140, 1285696), (160, 1124984), (224, 803560), (256, 703115), (280, 642848), (320, 562492), (448, 401780), (560, 321424), (640, 281246), (896, 200890), (1120, 160712), (1280, 140623), (1792, 100445), (2240, 80356), (4480, 40178), (8960, 20089)]