178397890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{659}}^1$

素因数の和:807

約数の個数: 64

約数和(自身を含む): 369515520

約数和(自身を除く): 191117630

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 107, 110, 115, 214, 230, 253, 506, 535, 659, 1070, 1177, 1265, 1318, 2354, 2461, 2530, 3295, 4922, 5885, 6590, 7249, 11770, 12305, 14498, 15157, 24610, 27071, 30314, 36245, 54142, 70513, 72490, 75785, 135355, 141026, 151570, 166727, 270710, 333454, 352565, 705130, 775643, 833635, 1551286, 1621799, 1667270, 3243598, 3878215, 7756430, 8108995, 16217990, 17839789, 35679578, 89198945, 178397890]

約数ペア:

[(1, 178397890), (2, 89198945), (5, 35679578), (10, 17839789), (11, 16217990), (22, 8108995), (23, 7756430), (46, 3878215), (55, 3243598), (107, 1667270), (110, 1621799), (115, 1551286), (214, 833635), (230, 775643), (253, 705130), (506, 352565), (535, 333454), (659, 270710), (1070, 166727), (1177, 151570), (1265, 141026), (1318, 135355), (2354, 75785), (2461, 72490), (2530, 70513), (3295, 54142), (4922, 36245), (5885, 30314), (6590, 27071), (7249, 24610), (11770, 15157), (12305, 14498)]