19637120

素因数分解:

$2^7\times 5^1\times {\mathrm{61}}^1\times {\mathrm{503}}^1$

素因数の和:583

約数の個数: 64

約数和(自身を含む): 47809440

約数和(自身を除く): 28172320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 244, 305, 320, 488, 503, 610, 640, 976, 1006, 1220, 1952, 2012, 2440, 2515, 3904, 4024, 4880, 5030, 7808, 8048, 9760, 10060, 16096, 19520, 20120, 30683, 32192, 39040, 40240, 61366, 64384, 80480, 122732, 153415, 160960, 245464, 306830, 321920, 490928, 613660, 981856, 1227320, 1963712, 2454640, 3927424, 4909280, 9818560, 19637120]

約数ペア:

[(1, 19637120), (2, 9818560), (4, 4909280), (5, 3927424), (8, 2454640), (10, 1963712), (16, 1227320), (20, 981856), (32, 613660), (40, 490928), (61, 321920), (64, 306830), (80, 245464), (122, 160960), (128, 153415), (160, 122732), (244, 80480), (305, 64384), (320, 61366), (488, 40240), (503, 39040), (610, 32192), (640, 30683), (976, 20120), (1006, 19520), (1220, 16096), (1952, 10060), (2012, 9760), (2440, 8048), (2515, 7808), (3904, 5030), (4024, 4880)]