131320280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{839}}^1$

素因数の和:913

約数の個数: 128

約数和(自身を含む): 372556800

約数和(自身を除く): 241236520

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 43, 52, 56, 65, 70, 86, 91, 104, 130, 140, 172, 182, 215, 260, 280, 301, 344, 364, 430, 455, 520, 559, 602, 728, 839, 860, 910, 1118, 1204, 1505, 1678, 1720, 1820, 2236, 2408, 2795, 3010, 3356, 3640, 3913, 4195, 4472, 5590, 5873, 6020, 6712, 7826, 8390, 10907, 11180, 11746, 12040, 15652, 16780, 19565, 21814, 22360, 23492, 29365, 31304, 33560, 36077, 39130, 43628, 46984, 54535, 58730, 72154, 76349, 78260, 87256, 109070, 117460, 144308, 152698, 156520, 180385, 218140, 234920, 252539, 288616, 305396, 360770, 381745, 436280, 469001, 505078, 610792, 721540, 763490, 938002, 1010156, 1262695, 1443080, 1526980, 1876004, 2020312, 2345005, 2525390, 3053960, 3283007, 3752008, 4690010, 5050780, 6566014, 9380020, 10101560, 13132028, 16415035, 18760040, 26264056, 32830070, 65660140, 131320280]

約数ペア:

[(1, 131320280), (2, 65660140), (4, 32830070), (5, 26264056), (7, 18760040), (8, 16415035), (10, 13132028), (13, 10101560), (14, 9380020), (20, 6566014), (26, 5050780), (28, 4690010), (35, 3752008), (40, 3283007), (43, 3053960), (52, 2525390), (56, 2345005), (65, 2020312), (70, 1876004), (86, 1526980), (91, 1443080), (104, 1262695), (130, 1010156), (140, 938002), (172, 763490), (182, 721540), (215, 610792), (260, 505078), (280, 469001), (301, 436280), (344, 381745), (364, 360770), (430, 305396), (455, 288616), (520, 252539), (559, 234920), (602, 218140), (728, 180385), (839, 156520), (860, 152698), (910, 144308), (1118, 117460), (1204, 109070), (1505, 87256), (1678, 78260), (1720, 76349), (1820, 72154), (2236, 58730), (2408, 54535), (2795, 46984), (3010, 43628), (3356, 39130), (3640, 36077), (3913, 33560), (4195, 31304), (4472, 29365), (5590, 23492), (5873, 22360), (6020, 21814), (6712, 19565), (7826, 16780), (8390, 15652), (10907, 12040), (11180, 11746)]