1780331970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{643}}^1$

素因数の和:820

約数の個数: 128

約数和(自身を含む): 4657201920

約数和(自身を除く): 2876869950

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 61, 85, 89, 102, 122, 170, 178, 183, 255, 267, 305, 366, 445, 510, 534, 610, 643, 890, 915, 1037, 1286, 1335, 1513, 1830, 1929, 2074, 2670, 3026, 3111, 3215, 3858, 4539, 5185, 5429, 6222, 6430, 7565, 9078, 9645, 10370, 10858, 10931, 15130, 15555, 16287, 19290, 21862, 22695, 27145, 31110, 32574, 32793, 39223, 45390, 54290, 54655, 57227, 65586, 78446, 81435, 92293, 109310, 114454, 117669, 162870, 163965, 171681, 184586, 196115, 235338, 276879, 286135, 327930, 343362, 392230, 461465, 553758, 572270, 588345, 666791, 858405, 922930, 972859, 1176690, 1333582, 1384395, 1716810, 1945718, 2000373, 2768790, 2918577, 3333955, 3490847, 4000746, 4864295, 5837154, 6667910, 6981694, 9728590, 10001865, 10472541, 14592885, 17454235, 20003730, 20945082, 29185770, 34908470, 52362705, 59344399, 104725410, 118688798, 178033197, 296721995, 356066394, 593443990, 890165985, 1780331970]

約数ペア:

[(1, 1780331970), (2, 890165985), (3, 593443990), (5, 356066394), (6, 296721995), (10, 178033197), (15, 118688798), (17, 104725410), (30, 59344399), (34, 52362705), (51, 34908470), (61, 29185770), (85, 20945082), (89, 20003730), (102, 17454235), (122, 14592885), (170, 10472541), (178, 10001865), (183, 9728590), (255, 6981694), (267, 6667910), (305, 5837154), (366, 4864295), (445, 4000746), (510, 3490847), (534, 3333955), (610, 2918577), (643, 2768790), (890, 2000373), (915, 1945718), (1037, 1716810), (1286, 1384395), (1335, 1333582), (1513, 1176690), (1830, 972859), (1929, 922930), (2074, 858405), (2670, 666791), (3026, 588345), (3111, 572270), (3215, 553758), (3858, 461465), (4539, 392230), (5185, 343362), (5429, 327930), (6222, 286135), (6430, 276879), (7565, 235338), (9078, 196115), (9645, 184586), (10370, 171681), (10858, 163965), (10931, 162870), (15130, 117669), (15555, 114454), (16287, 109310), (19290, 92293), (21862, 81435), (22695, 78446), (27145, 65586), (31110, 57227), (32574, 54655), (32793, 54290), (39223, 45390)]