20289175040

素因数分解:

$2^9\times 5^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{1237}}^1$

素因数の和:1452

約数の個数: 160

約数和(自身を含む): 50152370400

約数和(自身を除く): 29863195360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 128, 149, 160, 172, 215, 256, 298, 320, 344, 430, 512, 596, 640, 688, 745, 860, 1192, 1237, 1280, 1376, 1490, 1720, 2384, 2474, 2560, 2752, 2980, 3440, 4768, 4948, 5504, 5960, 6185, 6407, 6880, 9536, 9896, 11008, 11920, 12370, 12814, 13760, 19072, 19792, 22016, 23840, 24740, 25628, 27520, 32035, 38144, 39584, 47680, 49480, 51256, 53191, 55040, 64070, 76288, 79168, 95360, 98960, 102512, 106382, 110080, 128140, 158336, 184313, 190720, 197920, 205024, 212764, 256280, 265955, 316672, 368626, 381440, 395840, 410048, 425528, 512560, 531910, 633344, 737252, 791680, 820096, 851056, 921565, 1025120, 1063820, 1474504, 1583360, 1640192, 1702112, 1843130, 2050240, 2127640, 2949008, 3166720, 3280384, 3404224, 3686260, 4100480, 4255280, 5898016, 6808448, 7372520, 7925459, 8200960, 8510560, 11796032, 13616896, 14745040, 15850918, 16401920, 17021120, 23592064, 27233792, 29490080, 31701836, 34042240, 39627295, 47184128, 58980160, 63403672, 68084480, 79254590, 94368256, 117960320, 126807344, 136168960, 158509180, 235920640, 253614688, 317018360, 471841280, 507229376, 634036720, 1014458752, 1268073440, 2028917504, 2536146880, 4057835008, 5072293760, 10144587520, 20289175040]

約数ペア:

[(1, 20289175040), (2, 10144587520), (4, 5072293760), (5, 4057835008), (8, 2536146880), (10, 2028917504), (16, 1268073440), (20, 1014458752), (32, 634036720), (40, 507229376), (43, 471841280), (64, 317018360), (80, 253614688), (86, 235920640), (128, 158509180), (149, 136168960), (160, 126807344), (172, 117960320), (215, 94368256), (256, 79254590), (298, 68084480), (320, 63403672), (344, 58980160), (430, 47184128), (512, 39627295), (596, 34042240), (640, 31701836), (688, 29490080), (745, 27233792), (860, 23592064), (1192, 17021120), (1237, 16401920), (1280, 15850918), (1376, 14745040), (1490, 13616896), (1720, 11796032), (2384, 8510560), (2474, 8200960), (2560, 7925459), (2752, 7372520), (2980, 6808448), (3440, 5898016), (4768, 4255280), (4948, 4100480), (5504, 3686260), (5960, 3404224), (6185, 3280384), (6407, 3166720), (6880, 2949008), (9536, 2127640), (9896, 2050240), (11008, 1843130), (11920, 1702112), (12370, 1640192), (12814, 1583360), (13760, 1474504), (19072, 1063820), (19792, 1025120), (22016, 921565), (23840, 851056), (24740, 820096), (25628, 791680), (27520, 737252), (32035, 633344), (38144, 531910), (39584, 512560), (47680, 425528), (49480, 410048), (51256, 395840), (53191, 381440), (55040, 368626), (64070, 316672), (76288, 265955), (79168, 256280), (95360, 212764), (98960, 205024), (102512, 197920), (106382, 190720), (110080, 184313), (128140, 158336)]