207856990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{353}}^1$

素因数の和:525

約数の個数: 64

約数和(自身を含む): 421163712

約数和(自身を除く): 213306722

約数列:

[1, 2, 5, 10, 11, 22, 53, 55, 101, 106, 110, 202, 265, 353, 505, 530, 583, 706, 1010, 1111, 1166, 1765, 2222, 2915, 3530, 3883, 5353, 5555, 5830, 7766, 10706, 11110, 18709, 19415, 26765, 35653, 37418, 38830, 53530, 58883, 71306, 93545, 117766, 178265, 187090, 205799, 294415, 356530, 392183, 411598, 588830, 784366, 1028995, 1889609, 1960915, 2057990, 3779218, 3921830, 9448045, 18896090, 20785699, 41571398, 103928495, 207856990]

約数ペア:

[(1, 207856990), (2, 103928495), (5, 41571398), (10, 20785699), (11, 18896090), (22, 9448045), (53, 3921830), (55, 3779218), (101, 2057990), (106, 1960915), (110, 1889609), (202, 1028995), (265, 784366), (353, 588830), (505, 411598), (530, 392183), (583, 356530), (706, 294415), (1010, 205799), (1111, 187090), (1166, 178265), (1765, 117766), (2222, 93545), (2915, 71306), (3530, 58883), (3883, 53530), (5353, 38830), (5555, 37418), (5830, 35653), (7766, 26765), (10706, 19415), (11110, 18709)]