20451974400

素因数分解:

$2^8\times 3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{191}}^1$

素因数の和:260

約数の個数: 972

約数和(自身を含む): 86827942656

約数和(自身を除く): 66375968256

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 15, 16, 18, 20, 22, 24, 25, 26, 30, 32, 33, 36, 39, 40, 44, 45, 48, 50, 52, 55, 60, 64, 65, 66, 72, 75, 78, 80, 88, 90, 96, 99, 100, 104, 110, 117, 120, 128, 130, 132, 143, 144, 150, 156, 160, 165, 169, 176, 180, 191, 192, 195, 198, 200, 208, 220, 225, 234, 240, 256, 260, 264, 275, 286, 288, 300, 312, 320, 325, 330, 338, 352, 360, 382, 384, 390, 396, 400, 416, 429, 440, 450, 468, 480, 495, 507, 520, 528, 550, 572, 573, 576, 585, 600, 624, 640, 650, 660, 676, 704, 715, 720, 764, 768, 780, 792, 800, 825, 832, 845, 858, 880, 900, 936, 955, 960, 975, 990, 1014, 1040, 1056, 1100, 1144, 1146, 1152, 1170, 1200, 1248, 1280, 1287, 1300, 1320, 1352, 1408, 1430, 1440, 1521, 1528, 1560, 1584, 1600, 1650, 1664, 1690, 1716, 1719, 1760, 1800, 1859, 1872, 1910, 1920, 1950, 1980, 2028, 2080, 2101, 2112, 2145, 2200, 2288, 2292, 2304, 2340, 2400, 2475, 2483, 2496, 2535, 2574, 2600, 2640, 2704, 2816, 2860, 2865, 2880, 2925, 3042, 3056, 3120, 3168, 3200, 3300, 3328, 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約数ペア:

[(1, 20451974400), (2, 10225987200), (3, 6817324800), (4, 5112993600), (5, 4090394880), (6, 3408662400), (8, 2556496800), (9, 2272441600), (10, 2045197440), (11, 1859270400), (12, 1704331200), (13, 1573228800), (15, 1363464960), (16, 1278248400), (18, 1136220800), (20, 1022598720), (22, 929635200), (24, 852165600), (25, 818078976), (26, 786614400), (30, 681732480), (32, 639124200), (33, 619756800), (36, 568110400), (39, 524409600), (40, 511299360), (44, 464817600), (45, 454488320), (48, 426082800), (50, 409039488), (52, 393307200), (55, 371854080), (60, 340866240), (64, 319562100), (65, 314645760), (66, 309878400), (72, 284055200), (75, 272692992), (78, 262204800), (80, 255649680), (88, 232408800), (90, 227244160), (96, 213041400), (99, 206585600), (100, 204519744), (104, 196653600), (110, 185927040), (117, 174803200), (120, 170433120), (128, 159781050), (130, 157322880), (132, 154939200), (143, 143020800), (144, 142027600), (150, 136346496), (156, 131102400), (160, 127824840), (165, 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