28781808

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{151}}^1$

素因数の和:211

約数の個数: 120

約数和(自身を含む): 86173056

約数和(自身を除く): 57391248

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 19, 22, 24, 33, 38, 44, 48, 57, 66, 76, 88, 114, 132, 151, 152, 176, 209, 228, 264, 302, 304, 361, 418, 453, 456, 528, 604, 627, 722, 836, 906, 912, 1083, 1208, 1254, 1444, 1661, 1672, 1812, 2166, 2416, 2508, 2869, 2888, 3322, 3344, 3624, 3971, 4332, 4983, 5016, 5738, 5776, 6644, 7248, 7942, 8607, 8664, 9966, 10032, 11476, 11913, 13288, 15884, 17214, 17328, 19932, 22952, 23826, 26576, 31559, 31768, 34428, 39864, 45904, 47652, 54511, 63118, 63536, 68856, 79728, 94677, 95304, 109022, 126236, 137712, 163533, 189354, 190608, 218044, 252472, 327066, 378708, 436088, 504944, 599621, 654132, 757416, 872176, 1199242, 1308264, 1514832, 1798863, 2398484, 2616528, 3597726, 4796968, 7195452, 9593936, 14390904, 28781808]

約数ペア:

[(1, 28781808), (2, 14390904), (3, 9593936), (4, 7195452), (6, 4796968), (8, 3597726), (11, 2616528), (12, 2398484), (16, 1798863), (19, 1514832), (22, 1308264), (24, 1199242), (33, 872176), (38, 757416), (44, 654132), (48, 599621), (57, 504944), (66, 436088), (76, 378708), (88, 327066), (114, 252472), (132, 218044), (151, 190608), (152, 189354), (176, 163533), (209, 137712), (228, 126236), (264, 109022), (302, 95304), (304, 94677), (361, 79728), (418, 68856), (453, 63536), (456, 63118), (528, 54511), (604, 47652), (627, 45904), (722, 39864), (836, 34428), (906, 31768), (912, 31559), (1083, 26576), (1208, 23826), (1254, 22952), (1444, 19932), (1661, 17328), (1672, 17214), (1812, 15884), (2166, 13288), (2416, 11913), (2508, 11476), (2869, 10032), (2888, 9966), (3322, 8664), (3344, 8607), (3624, 7942), (3971, 7248), (4332, 6644), (4983, 5776), (5016, 5738)]