20140120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{503}}^1$

素因数の和:545

約数の個数: 128

約数和(自身を含む): 60963840

約数和(自身を除く): 40823720

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 20, 22, 26, 28, 35, 40, 44, 52, 55, 56, 65, 70, 77, 88, 91, 104, 110, 130, 140, 143, 154, 182, 220, 260, 280, 286, 308, 364, 385, 440, 455, 503, 520, 572, 616, 715, 728, 770, 910, 1001, 1006, 1144, 1430, 1540, 1820, 2002, 2012, 2515, 2860, 3080, 3521, 3640, 4004, 4024, 5005, 5030, 5533, 5720, 6539, 7042, 8008, 10010, 10060, 11066, 13078, 14084, 17605, 20020, 20120, 22132, 26156, 27665, 28168, 32695, 35210, 38731, 40040, 44264, 45773, 52312, 55330, 65390, 70420, 71929, 77462, 91546, 110660, 130780, 140840, 143858, 154924, 183092, 193655, 221320, 228865, 261560, 287716, 309848, 359645, 366184, 387310, 457730, 503503, 575432, 719290, 774620, 915460, 1007006, 1438580, 1549240, 1830920, 2014012, 2517515, 2877160, 4028024, 5035030, 10070060, 20140120]

約数ペア:

[(1, 20140120), (2, 10070060), (4, 5035030), (5, 4028024), (7, 2877160), (8, 2517515), (10, 2014012), (11, 1830920), (13, 1549240), (14, 1438580), (20, 1007006), (22, 915460), (26, 774620), (28, 719290), (35, 575432), (40, 503503), (44, 457730), (52, 387310), (55, 366184), (56, 359645), (65, 309848), (70, 287716), (77, 261560), (88, 228865), (91, 221320), (104, 193655), (110, 183092), (130, 154924), (140, 143858), (143, 140840), (154, 130780), (182, 110660), (220, 91546), (260, 77462), (280, 71929), (286, 70420), (308, 65390), (364, 55330), (385, 52312), (440, 45773), (455, 44264), (503, 40040), (520, 38731), (572, 35210), (616, 32695), (715, 28168), (728, 27665), (770, 26156), (910, 22132), (1001, 20120), (1006, 20020), (1144, 17605), (1430, 14084), (1540, 13078), (1820, 11066), (2002, 10060), (2012, 10010), (2515, 8008), (2860, 7042), (3080, 6539), (3521, 5720), (3640, 5533), (4004, 5030), (4024, 5005)]