13288240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{389}}^1$

素因数の和:470

約数の個数: 80

約数和(自身を含む): 35979840

約数和(自身を除く): 22691600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 61, 70, 80, 112, 122, 140, 244, 280, 305, 389, 427, 488, 560, 610, 778, 854, 976, 1220, 1556, 1708, 1945, 2135, 2440, 2723, 3112, 3416, 3890, 4270, 4880, 5446, 6224, 6832, 7780, 8540, 10892, 13615, 15560, 17080, 21784, 23729, 27230, 31120, 34160, 43568, 47458, 54460, 94916, 108920, 118645, 166103, 189832, 217840, 237290, 332206, 379664, 474580, 664412, 830515, 949160, 1328824, 1661030, 1898320, 2657648, 3322060, 6644120, 13288240]

約数ペア:

[(1, 13288240), (2, 6644120), (4, 3322060), (5, 2657648), (7, 1898320), (8, 1661030), (10, 1328824), (14, 949160), (16, 830515), (20, 664412), (28, 474580), (35, 379664), (40, 332206), (56, 237290), (61, 217840), (70, 189832), (80, 166103), (112, 118645), (122, 108920), (140, 94916), (244, 54460), (280, 47458), (305, 43568), (389, 34160), (427, 31120), (488, 27230), (560, 23729), (610, 21784), (778, 17080), (854, 15560), (976, 13615), (1220, 10892), (1556, 8540), (1708, 7780), (1945, 6832), (2135, 6224), (2440, 5446), (2723, 4880), (3112, 4270), (3416, 3890)]