19826560

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2383}}^1$

素因数の和:2415

約数の個数: 64

約数和(自身を含む): 51065280

約数和(自身を除く): 31238720

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 260, 320, 416, 520, 640, 832, 1040, 1664, 2080, 2383, 4160, 4766, 8320, 9532, 11915, 19064, 23830, 30979, 38128, 47660, 61958, 76256, 95320, 123916, 152512, 154895, 190640, 247832, 305024, 309790, 381280, 495664, 619580, 762560, 991328, 1239160, 1525120, 1982656, 2478320, 3965312, 4956640, 9913280, 19826560]

約数ペア:

[(1, 19826560), (2, 9913280), (4, 4956640), (5, 3965312), (8, 2478320), (10, 1982656), (13, 1525120), (16, 1239160), (20, 991328), (26, 762560), (32, 619580), (40, 495664), (52, 381280), (64, 309790), (65, 305024), (80, 247832), (104, 190640), (128, 154895), (130, 152512), (160, 123916), (208, 95320), (260, 76256), (320, 61958), (416, 47660), (520, 38128), (640, 30979), (832, 23830), (1040, 19064), (1664, 11915), (2080, 9532), (2383, 8320), (4160, 4766)]