211221920

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1$

素因数の和:287

約数の個数: 192

約数和(自身を含む): 624879360

約数和(自身を除く): 413657440

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 65, 70, 80, 89, 91, 104, 112, 130, 140, 160, 163, 178, 182, 208, 224, 260, 280, 326, 356, 364, 416, 445, 455, 520, 560, 623, 652, 712, 728, 815, 890, 910, 1040, 1120, 1141, 1157, 1246, 1304, 1424, 1456, 1630, 1780, 1820, 2080, 2119, 2282, 2314, 2492, 2608, 2848, 2912, 3115, 3260, 3560, 3640, 4238, 4564, 4628, 4984, 5216, 5705, 5785, 6230, 6520, 7120, 7280, 8099, 8476, 9128, 9256, 9968, 10595, 11410, 11570, 12460, 13040, 14240, 14507, 14560, 14833, 16198, 16952, 18256, 18512, 19936, 21190, 22820, 23140, 24920, 26080, 29014, 29666, 32396, 33904, 36512, 37024, 40495, 42380, 45640, 46280, 49840, 58028, 59332, 64792, 67808, 72535, 74165, 80990, 84760, 91280, 92560, 99680, 101549, 116056, 118664, 129584, 145070, 148330, 161980, 169520, 182560, 185120, 188591, 203098, 232112, 237328, 259168, 290140, 296660, 323960, 339040, 377182, 406196, 464224, 474656, 507745, 580280, 593320, 647920, 754364, 812392, 942955, 1015490, 1160560, 1186640, 1295840, 1320137, 1508728, 1624784, 1885910, 2030980, 2321120, 2373280, 2640274, 3017456, 3249568, 3771820, 4061960, 5280548, 6034912, 6600685, 7543640, 8123920, 10561096, 13201370, 15087280, 16247840, 21122192, 26402740, 30174560, 42244384, 52805480, 105610960, 211221920]

約数ペア:

[(1, 211221920), (2, 105610960), (4, 52805480), (5, 42244384), (7, 30174560), (8, 26402740), (10, 21122192), (13, 16247840), (14, 15087280), (16, 13201370), (20, 10561096), (26, 8123920), (28, 7543640), (32, 6600685), (35, 6034912), (40, 5280548), (52, 4061960), (56, 3771820), (65, 3249568), (70, 3017456), (80, 2640274), (89, 2373280), (91, 2321120), (104, 2030980), (112, 1885910), (130, 1624784), (140, 1508728), (160, 1320137), (163, 1295840), (178, 1186640), (182, 1160560), (208, 1015490), (224, 942955), (260, 812392), (280, 754364), (326, 647920), (356, 593320), (364, 580280), (416, 507745), (445, 474656), (455, 464224), (520, 406196), (560, 377182), (623, 339040), (652, 323960), (712, 296660), (728, 290140), (815, 259168), (890, 237328), (910, 232112), (1040, 203098), (1120, 188591), (1141, 185120), (1157, 182560), (1246, 169520), (1304, 161980), (1424, 148330), (1456, 145070), (1630, 129584), (1780, 118664), (1820, 116056), (2080, 101549), (2119, 99680), (2282, 92560), (2314, 91280), (2492, 84760), (2608, 80990), (2848, 74165), (2912, 72535), (3115, 67808), (3260, 64792), (3560, 59332), (3640, 58028), (4238, 49840), (4564, 46280), (4628, 45640), (4984, 42380), (5216, 40495), (5705, 37024), (5785, 36512), (6230, 33904), (6520, 32396), (7120, 29666), (7280, 29014), (8099, 26080), (8476, 24920), (9128, 23140), (9256, 22820), (9968, 21190), (10595, 19936), (11410, 18512), (11570, 18256), (12460, 16952), (13040, 16198), (14240, 14833), (14507, 14560)]