8978320

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:212

約数の個数: 80

約数和(自身を含む): 22967280

約数和(自身を除く): 13988960

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 89, 97, 104, 130, 178, 194, 208, 260, 356, 388, 445, 485, 520, 712, 776, 890, 970, 1040, 1157, 1261, 1424, 1552, 1780, 1940, 2314, 2522, 3560, 3880, 4628, 5044, 5785, 6305, 7120, 7760, 8633, 9256, 10088, 11570, 12610, 17266, 18512, 20176, 23140, 25220, 34532, 43165, 46280, 50440, 69064, 86330, 92560, 100880, 112229, 138128, 172660, 224458, 345320, 448916, 561145, 690640, 897832, 1122290, 1795664, 2244580, 4489160, 8978320]

約数ペア:

[(1, 8978320), (2, 4489160), (4, 2244580), (5, 1795664), (8, 1122290), (10, 897832), (13, 690640), (16, 561145), (20, 448916), (26, 345320), (40, 224458), (52, 172660), (65, 138128), (80, 112229), (89, 100880), (97, 92560), (104, 86330), (130, 69064), (178, 50440), (194, 46280), (208, 43165), (260, 34532), (356, 25220), (388, 23140), (445, 20176), (485, 18512), (520, 17266), (712, 12610), (776, 11570), (890, 10088), (970, 9256), (1040, 8633), (1157, 7760), (1261, 7120), (1424, 6305), (1552, 5785), (1780, 5044), (1940, 4628), (2314, 3880), (2522, 3560)]