287684820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{20231}}^1$

素因数の和:20325

約数の個数: 72

約数和(自身を含む): 883733760

約数和(自身を除く): 596048940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 79, 90, 158, 180, 237, 316, 395, 474, 711, 790, 948, 1185, 1422, 1580, 2370, 2844, 3555, 4740, 7110, 14220, 20231, 40462, 60693, 80924, 101155, 121386, 182079, 202310, 242772, 303465, 364158, 404620, 606930, 728316, 910395, 1213860, 1598249, 1820790, 3196498, 3641580, 4794747, 6392996, 7991245, 9589494, 14384241, 15982490, 19178988, 23973735, 28768482, 31964980, 47947470, 57536964, 71921205, 95894940, 143842410, 287684820]

約数ペア:

[(1, 287684820), (2, 143842410), (3, 95894940), (4, 71921205), (5, 57536964), (6, 47947470), (9, 31964980), (10, 28768482), (12, 23973735), (15, 19178988), (18, 15982490), (20, 14384241), (30, 9589494), (36, 7991245), (45, 6392996), (60, 4794747), (79, 3641580), (90, 3196498), (158, 1820790), (180, 1598249), (237, 1213860), (316, 910395), (395, 728316), (474, 606930), (711, 404620), (790, 364158), (948, 303465), (1185, 242772), (1422, 202310), (1580, 182079), (2370, 121386), (2844, 101155), (3555, 80924), (4740, 60693), (7110, 40462), (14220, 20231)]