80185840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{149}}^1$

素因数の和:231

約数の個数: 120

約数和(自身を含む): 221637600

約数和(自身を除く): 141451760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 149, 155, 217, 248, 280, 298, 310, 434, 496, 560, 596, 620, 745, 868, 961, 1043, 1085, 1192, 1240, 1490, 1736, 1922, 2086, 2170, 2384, 2480, 2980, 3472, 3844, 4172, 4340, 4619, 4805, 5215, 5960, 6727, 7688, 8344, 8680, 9238, 9610, 10430, 11920, 13454, 15376, 16688, 17360, 18476, 19220, 20860, 23095, 26908, 32333, 33635, 36952, 38440, 41720, 46190, 53816, 64666, 67270, 73904, 76880, 83440, 92380, 107632, 129332, 134540, 143189, 161665, 184760, 258664, 269080, 286378, 323330, 369520, 517328, 538160, 572756, 646660, 715945, 1002323, 1145512, 1293320, 1431890, 2004646, 2291024, 2586640, 2863780, 4009292, 5011615, 5727560, 8018584, 10023230, 11455120, 16037168, 20046460, 40092920, 80185840]

約数ペア:

[(1, 80185840), (2, 40092920), (4, 20046460), (5, 16037168), (7, 11455120), (8, 10023230), (10, 8018584), (14, 5727560), (16, 5011615), (20, 4009292), (28, 2863780), (31, 2586640), (35, 2291024), (40, 2004646), (56, 1431890), (62, 1293320), (70, 1145512), (80, 1002323), (112, 715945), (124, 646660), (140, 572756), (149, 538160), (155, 517328), (217, 369520), (248, 323330), (280, 286378), (298, 269080), (310, 258664), (434, 184760), (496, 161665), (560, 143189), (596, 134540), (620, 129332), (745, 107632), (868, 92380), (961, 83440), (1043, 76880), (1085, 73904), (1192, 67270), (1240, 64666), (1490, 53816), (1736, 46190), (1922, 41720), (2086, 38440), (2170, 36952), (2384, 33635), (2480, 32333), (2980, 26908), (3472, 23095), (3844, 20860), (4172, 19220), (4340, 18476), (4619, 17360), (4805, 16688), (5215, 15376), (5960, 13454), (6727, 11920), (7688, 10430), (8344, 9610), (8680, 9238)]