215215840

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{97}}^1\times {\mathrm{283}}^1$

素因数の和:409

約数の個数: 144

約数和(自身を含む): 599668272

約数和(自身を除く): 384452432

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 97, 98, 112, 140, 160, 194, 196, 224, 245, 280, 283, 388, 392, 485, 490, 560, 566, 679, 776, 784, 970, 980, 1120, 1132, 1358, 1415, 1552, 1568, 1940, 1960, 1981, 2264, 2716, 2830, 3104, 3395, 3880, 3920, 3962, 4528, 4753, 5432, 5660, 6790, 7760, 7840, 7924, 9056, 9506, 9905, 10864, 11320, 13580, 13867, 15520, 15848, 19012, 19810, 21728, 22640, 23765, 27160, 27451, 27734, 31696, 38024, 39620, 45280, 47530, 54320, 54902, 55468, 63392, 69335, 76048, 79240, 95060, 108640, 109804, 110936, 137255, 138670, 152096, 158480, 190120, 192157, 219608, 221872, 274510, 277340, 316960, 380240, 384314, 439216, 443744, 549020, 554680, 760480, 768628, 878432, 960785, 1098040, 1109360, 1345099, 1537256, 1921570, 2196080, 2218720, 2690198, 3074512, 3843140, 4392160, 5380396, 6149024, 6725495, 7686280, 10760792, 13450990, 15372560, 21521584, 26901980, 30745120, 43043168, 53803960, 107607920, 215215840]

約数ペア:

[(1, 215215840), (2, 107607920), (4, 53803960), (5, 43043168), (7, 30745120), (8, 26901980), (10, 21521584), (14, 15372560), (16, 13450990), (20, 10760792), (28, 7686280), (32, 6725495), (35, 6149024), (40, 5380396), (49, 4392160), (56, 3843140), (70, 3074512), (80, 2690198), (97, 2218720), (98, 2196080), (112, 1921570), (140, 1537256), (160, 1345099), (194, 1109360), (196, 1098040), (224, 960785), (245, 878432), (280, 768628), (283, 760480), (388, 554680), (392, 549020), (485, 443744), (490, 439216), (560, 384314), (566, 380240), (679, 316960), (776, 277340), (784, 274510), (970, 221872), (980, 219608), (1120, 192157), (1132, 190120), (1358, 158480), (1415, 152096), (1552, 138670), (1568, 137255), (1940, 110936), (1960, 109804), (1981, 108640), (2264, 95060), (2716, 79240), (2830, 76048), (3104, 69335), (3395, 63392), (3880, 55468), (3920, 54902), (3962, 54320), (4528, 47530), (4753, 45280), (5432, 39620), (5660, 38024), (6790, 31696), (7760, 27734), (7840, 27451), (7924, 27160), (9056, 23765), (9506, 22640), (9905, 21728), (10864, 19810), (11320, 19012), (13580, 15848), (13867, 15520)]