18724160

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{643}}^1$

素因数の和:680

約数の個数: 112

約数和(自身を含む): 54961536

約数和(自身を除く): 36237376

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 64, 65, 70, 80, 91, 104, 112, 130, 140, 160, 182, 208, 224, 260, 280, 320, 364, 416, 448, 455, 520, 560, 643, 728, 832, 910, 1040, 1120, 1286, 1456, 1820, 2080, 2240, 2572, 2912, 3215, 3640, 4160, 4501, 5144, 5824, 6430, 7280, 8359, 9002, 10288, 12860, 14560, 16718, 18004, 20576, 22505, 25720, 29120, 33436, 36008, 41152, 41795, 45010, 51440, 58513, 66872, 72016, 83590, 90020, 102880, 117026, 133744, 144032, 167180, 180040, 205760, 234052, 267488, 288064, 292565, 334360, 360080, 468104, 534976, 585130, 668720, 720160, 936208, 1170260, 1337440, 1440320, 1872416, 2340520, 2674880, 3744832, 4681040, 9362080, 18724160]

約数ペア:

[(1, 18724160), (2, 9362080), (4, 4681040), (5, 3744832), (7, 2674880), (8, 2340520), (10, 1872416), (13, 1440320), (14, 1337440), (16, 1170260), (20, 936208), (26, 720160), (28, 668720), (32, 585130), (35, 534976), (40, 468104), (52, 360080), (56, 334360), (64, 292565), (65, 288064), (70, 267488), (80, 234052), (91, 205760), (104, 180040), (112, 167180), (130, 144032), (140, 133744), (160, 117026), (182, 102880), (208, 90020), (224, 83590), (260, 72016), (280, 66872), (320, 58513), (364, 51440), (416, 45010), (448, 41795), (455, 41152), (520, 36008), (560, 33436), (643, 29120), (728, 25720), (832, 22505), (910, 20576), (1040, 18004), (1120, 16718), (1286, 14560), (1456, 12860), (1820, 10288), (2080, 9002), (2240, 8359), (2572, 7280), (2912, 6430), (3215, 5824), (3640, 5144), (4160, 4501)]