18904544

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1$

素因数の和:136

約数の個数: 96

約数和(自身を含む): 43545600

約数和(自身を除く): 24641056

約数列:

[1, 2, 4, 8, 16, 17, 19, 31, 32, 34, 38, 59, 62, 68, 76, 118, 124, 136, 152, 236, 248, 272, 304, 323, 472, 496, 527, 544, 589, 608, 646, 944, 992, 1003, 1054, 1121, 1178, 1292, 1829, 1888, 2006, 2108, 2242, 2356, 2584, 3658, 4012, 4216, 4484, 4712, 5168, 7316, 8024, 8432, 8968, 9424, 10013, 10336, 14632, 16048, 16864, 17936, 18848, 19057, 20026, 29264, 31093, 32096, 34751, 35872, 38114, 40052, 58528, 62186, 69502, 76228, 80104, 124372, 139004, 152456, 160208, 248744, 278008, 304912, 320416, 497488, 556016, 590767, 609824, 994976, 1112032, 1181534, 2363068, 4726136, 9452272, 18904544]

約数ペア:

[(1, 18904544), (2, 9452272), (4, 4726136), (8, 2363068), (16, 1181534), (17, 1112032), (19, 994976), (31, 609824), (32, 590767), (34, 556016), (38, 497488), (59, 320416), (62, 304912), (68, 278008), (76, 248744), (118, 160208), (124, 152456), (136, 139004), (152, 124372), (236, 80104), (248, 76228), (272, 69502), (304, 62186), (323, 58528), (472, 40052), (496, 38114), (527, 35872), (544, 34751), (589, 32096), (608, 31093), (646, 29264), (944, 20026), (992, 19057), (1003, 18848), (1054, 17936), (1121, 16864), (1178, 16048), (1292, 14632), (1829, 10336), (1888, 10013), (2006, 9424), (2108, 8968), (2242, 8432), (2356, 8024), (2584, 7316), (3658, 5168), (4012, 4712), (4216, 4484)]