20903040

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1$

素因数の和:235

約数の個数: 192

約数和(自身を含む): 76377600

約数和(自身を除く): 55474560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 32, 36, 38, 40, 45, 48, 57, 60, 64, 72, 76, 80, 90, 95, 96, 114, 120, 128, 144, 152, 160, 171, 180, 190, 191, 192, 228, 240, 285, 288, 304, 320, 342, 360, 380, 382, 384, 456, 480, 570, 573, 576, 608, 640, 684, 720, 760, 764, 855, 912, 955, 960, 1140, 1146, 1152, 1216, 1368, 1440, 1520, 1528, 1710, 1719, 1824, 1910, 1920, 2280, 2292, 2432, 2736, 2865, 2880, 3040, 3056, 3420, 3438, 3629, 3648, 3820, 4560, 4584, 5472, 5730, 5760, 6080, 6112, 6840, 6876, 7258, 7296, 7640, 8595, 9120, 9168, 10887, 10944, 11460, 12160, 12224, 13680, 13752, 14516, 15280, 17190, 18145, 18240, 18336, 21774, 21888, 22920, 24448, 27360, 27504, 29032, 30560, 32661, 34380, 36290, 36480, 36672, 43548, 45840, 54435, 54720, 55008, 58064, 61120, 65322, 68760, 72580, 73344, 87096, 91680, 108870, 109440, 110016, 116128, 122240, 130644, 137520, 145160, 163305, 174192, 183360, 217740, 220032, 232256, 261288, 275040, 290320, 326610, 348384, 366720, 435480, 464512, 522576, 550080, 580640, 653220, 696768, 870960, 1045152, 1100160, 1161280, 1306440, 1393536, 1741920, 2090304, 2322560, 2612880, 3483840, 4180608, 5225760, 6967680, 10451520, 20903040]

約数ペア:

[(1, 20903040), (2, 10451520), (3, 6967680), (4, 5225760), (5, 4180608), (6, 3483840), (8, 2612880), (9, 2322560), (10, 2090304), (12, 1741920), (15, 1393536), (16, 1306440), (18, 1161280), (19, 1100160), (20, 1045152), (24, 870960), (30, 696768), (32, 653220), (36, 580640), (38, 550080), (40, 522576), (45, 464512), (48, 435480), (57, 366720), (60, 348384), (64, 326610), (72, 290320), (76, 275040), (80, 261288), (90, 232256), (95, 220032), (96, 217740), (114, 183360), (120, 174192), (128, 163305), (144, 145160), (152, 137520), (160, 130644), (171, 122240), (180, 116128), (190, 110016), (191, 109440), (192, 108870), (228, 91680), (240, 87096), (285, 73344), (288, 72580), (304, 68760), (320, 65322), (342, 61120), (360, 58064), (380, 55008), (382, 54720), (384, 54435), (456, 45840), (480, 43548), (570, 36672), (573, 36480), (576, 36290), (608, 34380), (640, 32661), (684, 30560), (720, 29032), (760, 27504), (764, 27360), (855, 24448), (912, 22920), (955, 21888), (960, 21774), (1140, 18336), (1146, 18240), (1152, 18145), (1216, 17190), (1368, 15280), (1440, 14516), (1520, 13752), (1528, 13680), (1710, 12224), (1719, 12160), (1824, 11460), (1910, 10944), (1920, 10887), (2280, 9168), (2292, 9120), (2432, 8595), (2736, 7640), (2865, 7296), (2880, 7258), (3040, 6876), (3056, 6840), (3420, 6112), (3438, 6080), (3629, 5760), (3648, 5730), (3820, 5472), (4560, 4584)]