40378401

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:179

約数の個数: 72

約数和(自身を含む): 73507200

約数和(自身を除く): 33128799

約数列:

[1, 3, 7, 9, 19, 21, 49, 57, 61, 63, 79, 133, 147, 171, 183, 237, 399, 427, 441, 549, 553, 711, 931, 1159, 1197, 1281, 1501, 1659, 2793, 2989, 3477, 3843, 3871, 4503, 4819, 4977, 8113, 8379, 8967, 10431, 10507, 11613, 13509, 14457, 24339, 26901, 31521, 33733, 34839, 43371, 56791, 73017, 73549, 91561, 94563, 101199, 170373, 220647, 236131, 274683, 303597, 511119, 640927, 661941, 708393, 824049, 1922781, 2125179, 4486489, 5768343, 13459467, 40378401]

約数ペア:

[(1, 40378401), (3, 13459467), (7, 5768343), (9, 4486489), (19, 2125179), (21, 1922781), (49, 824049), (57, 708393), (61, 661941), (63, 640927), (79, 511119), (133, 303597), (147, 274683), (171, 236131), (183, 220647), (237, 170373), (399, 101199), (427, 94563), (441, 91561), (549, 73549), (553, 73017), (711, 56791), (931, 43371), (1159, 34839), (1197, 33733), (1281, 31521), (1501, 26901), (1659, 24339), (2793, 14457), (2989, 13509), (3477, 11613), (3843, 10507), (3871, 10431), (4503, 8967), (4819, 8379), (4977, 8113)]