28931040

素因数分解:

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

素因数の和:242

約数の個数: 192

約数和(自身を含む): 104569920

約数和(自身を除く): 75638880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 37, 40, 45, 48, 54, 60, 72, 74, 80, 90, 96, 108, 111, 120, 135, 144, 148, 160, 180, 181, 185, 216, 222, 240, 270, 288, 296, 333, 360, 362, 370, 432, 444, 480, 540, 543, 555, 592, 666, 720, 724, 740, 864, 888, 905, 999, 1080, 1086, 1110, 1184, 1332, 1440, 1448, 1480, 1629, 1665, 1776, 1810, 1998, 2160, 2172, 2220, 2664, 2715, 2896, 2960, 3258, 3330, 3552, 3620, 3996, 4320, 4344, 4440, 4887, 4995, 5328, 5430, 5792, 5920, 6516, 6660, 6697, 7240, 7992, 8145, 8688, 8880, 9774, 9990, 10656, 10860, 13032, 13320, 13394, 14480, 15984, 16290, 17376, 17760, 19548, 19980, 20091, 21720, 24435, 26064, 26640, 26788, 28960, 31968, 32580, 33485, 39096, 39960, 40182, 43440, 48870, 52128, 53280, 53576, 60273, 65160, 66970, 78192, 79920, 80364, 86880, 97740, 100455, 107152, 120546, 130320, 133940, 156384, 159840, 160728, 180819, 195480, 200910, 214304, 241092, 260640, 267880, 301365, 321456, 361638, 390960, 401820, 482184, 535760, 602730, 642912, 723276, 781920, 803640, 904095, 964368, 1071520, 1205460, 1446552, 1607280, 1808190, 1928736, 2410920, 2893104, 3214560, 3616380, 4821840, 5786208, 7232760, 9643680, 14465520, 28931040]

約数ペア:

[(1, 28931040), (2, 14465520), (3, 9643680), (4, 7232760), (5, 5786208), (6, 4821840), (8, 3616380), (9, 3214560), (10, 2893104), (12, 2410920), (15, 1928736), (16, 1808190), (18, 1607280), (20, 1446552), (24, 1205460), (27, 1071520), (30, 964368), (32, 904095), (36, 803640), (37, 781920), (40, 723276), (45, 642912), (48, 602730), (54, 535760), (60, 482184), (72, 401820), (74, 390960), (80, 361638), (90, 321456), (96, 301365), (108, 267880), (111, 260640), (120, 241092), (135, 214304), (144, 200910), (148, 195480), (160, 180819), (180, 160728), (181, 159840), (185, 156384), (216, 133940), (222, 130320), (240, 120546), (270, 107152), (288, 100455), (296, 97740), (333, 86880), (360, 80364), (362, 79920), (370, 78192), (432, 66970), (444, 65160), (480, 60273), (540, 53576), (543, 53280), (555, 52128), (592, 48870), (666, 43440), (720, 40182), (724, 39960), (740, 39096), (864, 33485), (888, 32580), (905, 31968), (999, 28960), (1080, 26788), (1086, 26640), (1110, 26064), (1184, 24435), (1332, 21720), (1440, 20091), (1448, 19980), (1480, 19548), (1629, 17760), (1665, 17376), (1776, 16290), (1810, 15984), (1998, 14480), (2160, 13394), (2172, 13320), (2220, 13032), (2664, 10860), (2715, 10656), (2896, 9990), (2960, 9774), (3258, 8880), (3330, 8688), (3552, 8145), (3620, 7992), (3996, 7240), (4320, 6697), (4344, 6660), (4440, 6516), (4887, 5920), (4995, 5792), (5328, 5430)]