21698280

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1$

素因数の和:241

約数の個数: 160

約数和(自身を含む): 75315240

約数和(自身を除く): 53616960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 37, 40, 45, 54, 60, 72, 74, 81, 90, 108, 111, 120, 135, 148, 162, 180, 181, 185, 216, 222, 270, 296, 324, 333, 360, 362, 370, 405, 444, 540, 543, 555, 648, 666, 724, 740, 810, 888, 905, 999, 1080, 1086, 1110, 1332, 1448, 1480, 1620, 1629, 1665, 1810, 1998, 2172, 2220, 2664, 2715, 2997, 3240, 3258, 3330, 3620, 3996, 4344, 4440, 4887, 4995, 5430, 5994, 6516, 6660, 6697, 7240, 7992, 8145, 9774, 9990, 10860, 11988, 13032, 13320, 13394, 14661, 14985, 16290, 19548, 19980, 20091, 21720, 23976, 24435, 26788, 29322, 29970, 32580, 33485, 39096, 39960, 40182, 48870, 53576, 58644, 59940, 60273, 65160, 66970, 73305, 80364, 97740, 100455, 117288, 119880, 120546, 133940, 146610, 160728, 180819, 195480, 200910, 241092, 267880, 293220, 301365, 361638, 401820, 482184, 542457, 586440, 602730, 723276, 803640, 904095, 1084914, 1205460, 1446552, 1808190, 2169828, 2410920, 2712285, 3616380, 4339656, 5424570, 7232760, 10849140, 21698280]

約数ペア:

[(1, 21698280), (2, 10849140), (3, 7232760), (4, 5424570), (5, 4339656), (6, 3616380), (8, 2712285), (9, 2410920), (10, 2169828), (12, 1808190), (15, 1446552), (18, 1205460), (20, 1084914), (24, 904095), (27, 803640), (30, 723276), (36, 602730), (37, 586440), (40, 542457), (45, 482184), (54, 401820), (60, 361638), (72, 301365), (74, 293220), (81, 267880), (90, 241092), (108, 200910), (111, 195480), (120, 180819), (135, 160728), (148, 146610), (162, 133940), (180, 120546), (181, 119880), (185, 117288), (216, 100455), (222, 97740), (270, 80364), (296, 73305), (324, 66970), (333, 65160), (360, 60273), (362, 59940), (370, 58644), (405, 53576), (444, 48870), (540, 40182), (543, 39960), (555, 39096), (648, 33485), (666, 32580), (724, 29970), (740, 29322), (810, 26788), (888, 24435), (905, 23976), (999, 21720), (1080, 20091), (1086, 19980), (1110, 19548), (1332, 16290), (1448, 14985), (1480, 14661), (1620, 13394), (1629, 13320), (1665, 13032), (1810, 11988), (1998, 10860), (2172, 9990), (2220, 9774), (2664, 8145), (2715, 7992), (2997, 7240), (3240, 6697), (3258, 6660), (3330, 6516), (3620, 5994), (3996, 5430), (4344, 4995), (4440, 4887)]