161765240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2339}}^1$

素因数の和:2389

約数の個数: 128

約数和(自身を含む): 471744000

約数和(自身を除く): 309978760

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 19, 20, 26, 28, 35, 38, 40, 52, 56, 65, 70, 76, 91, 95, 104, 130, 133, 140, 152, 182, 190, 247, 260, 266, 280, 364, 380, 455, 494, 520, 532, 665, 728, 760, 910, 988, 1064, 1235, 1330, 1729, 1820, 1976, 2339, 2470, 2660, 3458, 3640, 4678, 4940, 5320, 6916, 8645, 9356, 9880, 11695, 13832, 16373, 17290, 18712, 23390, 30407, 32746, 34580, 44441, 46780, 60814, 65492, 69160, 81865, 88882, 93560, 121628, 130984, 152035, 163730, 177764, 212849, 222205, 243256, 304070, 311087, 327460, 355528, 425698, 444410, 577733, 608140, 622174, 654920, 851396, 888820, 1064245, 1155466, 1216280, 1244348, 1555435, 1702792, 1777640, 2128490, 2310932, 2488696, 2888665, 3110870, 4044131, 4256980, 4621864, 5777330, 6221740, 8088262, 8513960, 11554660, 12443480, 16176524, 20220655, 23109320, 32353048, 40441310, 80882620, 161765240]

約数ペア:

[(1, 161765240), (2, 80882620), (4, 40441310), (5, 32353048), (7, 23109320), (8, 20220655), (10, 16176524), (13, 12443480), (14, 11554660), (19, 8513960), (20, 8088262), (26, 6221740), (28, 5777330), (35, 4621864), (38, 4256980), (40, 4044131), (52, 3110870), (56, 2888665), (65, 2488696), (70, 2310932), (76, 2128490), (91, 1777640), (95, 1702792), (104, 1555435), (130, 1244348), (133, 1216280), (140, 1155466), (152, 1064245), (182, 888820), (190, 851396), (247, 654920), (260, 622174), (266, 608140), (280, 577733), (364, 444410), (380, 425698), (455, 355528), (494, 327460), (520, 311087), (532, 304070), (665, 243256), (728, 222205), (760, 212849), (910, 177764), (988, 163730), (1064, 152035), (1235, 130984), (1330, 121628), (1729, 93560), (1820, 88882), (1976, 81865), (2339, 69160), (2470, 65492), (2660, 60814), (3458, 46780), (3640, 44441), (4678, 34580), (4940, 32746), (5320, 30407), (6916, 23390), (8645, 18712), (9356, 17290), (9880, 16373), (11695, 13832)]