201911320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{4003}}^1$

素因数の和:4124

約数の個数: 64

約数和(自身を含む): 494413920

約数和(自身を除く): 292502600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 97, 104, 130, 194, 260, 388, 485, 520, 776, 970, 1261, 1940, 2522, 3880, 4003, 5044, 6305, 8006, 10088, 12610, 16012, 20015, 25220, 32024, 40030, 50440, 52039, 80060, 104078, 160120, 208156, 260195, 388291, 416312, 520390, 776582, 1040780, 1553164, 1941455, 2081560, 3106328, 3882910, 5047783, 7765820, 10095566, 15531640, 20191132, 25238915, 40382264, 50477830, 100955660, 201911320]

約数ペア:

[(1, 201911320), (2, 100955660), (4, 50477830), (5, 40382264), (8, 25238915), (10, 20191132), (13, 15531640), (20, 10095566), (26, 7765820), (40, 5047783), (52, 3882910), (65, 3106328), (97, 2081560), (104, 1941455), (130, 1553164), (194, 1040780), (260, 776582), (388, 520390), (485, 416312), (520, 388291), (776, 260195), (970, 208156), (1261, 160120), (1940, 104078), (2522, 80060), (3880, 52039), (4003, 50440), (5044, 40030), (6305, 32024), (8006, 25220), (10088, 20015), (12610, 16012)]