19861920

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1061}}^1$

素因数の和:1095

約数の個数: 144

約数和(自身を含む): 73061352

約数和(自身を除く): 53199432

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 96, 104, 117, 120, 130, 144, 156, 160, 180, 195, 208, 234, 240, 260, 288, 312, 360, 390, 416, 468, 480, 520, 585, 624, 720, 780, 936, 1040, 1061, 1170, 1248, 1440, 1560, 1872, 2080, 2122, 2340, 3120, 3183, 3744, 4244, 4680, 5305, 6240, 6366, 8488, 9360, 9549, 10610, 12732, 13793, 15915, 16976, 18720, 19098, 21220, 25464, 27586, 31830, 33952, 38196, 41379, 42440, 47745, 50928, 55172, 63660, 68965, 76392, 82758, 84880, 95490, 101856, 110344, 124137, 127320, 137930, 152784, 165516, 169760, 190980, 206895, 220688, 248274, 254640, 275860, 305568, 331032, 381960, 413790, 441376, 496548, 509280, 551720, 620685, 662064, 763920, 827580, 993096, 1103440, 1241370, 1324128, 1527840, 1655160, 1986192, 2206880, 2482740, 3310320, 3972384, 4965480, 6620640, 9930960, 19861920]

約数ペア:

[(1, 19861920), (2, 9930960), (3, 6620640), (4, 4965480), (5, 3972384), (6, 3310320), (8, 2482740), (9, 2206880), (10, 1986192), (12, 1655160), (13, 1527840), (15, 1324128), (16, 1241370), (18, 1103440), (20, 993096), (24, 827580), (26, 763920), (30, 662064), (32, 620685), (36, 551720), (39, 509280), (40, 496548), (45, 441376), (48, 413790), (52, 381960), (60, 331032), (65, 305568), (72, 275860), (78, 254640), (80, 248274), (90, 220688), (96, 206895), (104, 190980), (117, 169760), (120, 165516), (130, 152784), (144, 137930), (156, 127320), (160, 124137), (180, 110344), (195, 101856), (208, 95490), (234, 84880), (240, 82758), (260, 76392), (288, 68965), (312, 63660), (360, 55172), (390, 50928), (416, 47745), (468, 42440), (480, 41379), (520, 38196), (585, 33952), (624, 31830), (720, 27586), (780, 25464), (936, 21220), (1040, 19098), (1061, 18720), (1170, 16976), (1248, 15915), (1440, 13793), (1560, 12732), (1872, 10610), (2080, 9549), (2122, 9360), (2340, 8488), (3120, 6366), (3183, 6240), (3744, 5305), (4244, 4680)]