18946800

素因数分解:

$2^4\times 3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{277}}^1$

素因数の和:320

約数の個数: 180

約数和(自身を含む): 69461080

約数和(自身を除く): 50514280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 25, 30, 36, 38, 40, 45, 48, 50, 57, 60, 72, 75, 76, 80, 90, 95, 100, 114, 120, 144, 150, 152, 171, 180, 190, 200, 225, 228, 240, 277, 285, 300, 304, 342, 360, 380, 400, 450, 456, 475, 554, 570, 600, 684, 720, 760, 831, 855, 900, 912, 950, 1108, 1140, 1200, 1368, 1385, 1425, 1520, 1662, 1710, 1800, 1900, 2216, 2280, 2493, 2736, 2770, 2850, 3324, 3420, 3600, 3800, 4155, 4275, 4432, 4560, 4986, 5263, 5540, 5700, 6648, 6840, 6925, 7600, 8310, 8550, 9972, 10526, 11080, 11400, 12465, 13296, 13680, 13850, 15789, 16620, 17100, 19944, 20775, 21052, 22160, 22800, 24930, 26315, 27700, 31578, 33240, 34200, 39888, 41550, 42104, 47367, 49860, 52630, 55400, 62325, 63156, 66480, 68400, 78945, 83100, 84208, 94734, 99720, 105260, 110800, 124650, 126312, 131575, 157890, 166200, 189468, 199440, 210520, 236835, 249300, 252624, 263150, 315780, 332400, 378936, 394725, 421040, 473670, 498600, 526300, 631560, 757872, 789450, 947340, 997200, 1052600, 1184175, 1263120, 1578900, 1894680, 2105200, 2368350, 3157800, 3789360, 4736700, 6315600, 9473400, 18946800]

約数ペア:

[(1, 18946800), (2, 9473400), (3, 6315600), (4, 4736700), (5, 3789360), (6, 3157800), (8, 2368350), (9, 2105200), (10, 1894680), (12, 1578900), (15, 1263120), (16, 1184175), (18, 1052600), (19, 997200), (20, 947340), (24, 789450), (25, 757872), (30, 631560), (36, 526300), (38, 498600), (40, 473670), (45, 421040), (48, 394725), (50, 378936), (57, 332400), (60, 315780), (72, 263150), (75, 252624), (76, 249300), (80, 236835), (90, 210520), (95, 199440), (100, 189468), (114, 166200), (120, 157890), (144, 131575), (150, 126312), (152, 124650), (171, 110800), (180, 105260), (190, 99720), (200, 94734), (225, 84208), (228, 83100), (240, 78945), (277, 68400), (285, 66480), (300, 63156), (304, 62325), (342, 55400), (360, 52630), (380, 49860), (400, 47367), (450, 42104), (456, 41550), (475, 39888), (554, 34200), (570, 33240), (600, 31578), (684, 27700), (720, 26315), (760, 24930), (831, 22800), (855, 22160), (900, 21052), (912, 20775), (950, 19944), (1108, 17100), (1140, 16620), (1200, 15789), (1368, 13850), (1385, 13680), (1425, 13296), (1520, 12465), (1662, 11400), (1710, 11080), (1800, 10526), (1900, 9972), (2216, 8550), (2280, 8310), (2493, 7600), (2736, 6925), (2770, 6840), (2850, 6648), (3324, 5700), (3420, 5540), (3600, 5263), (3800, 4986), (4155, 4560), (4275, 4432)]