21907600

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{383}}^1$

素因数の和:425

約数の個数: 120

約数和(自身を含む): 61996032

約数和(自身を除く): 40088432

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 25, 26, 40, 44, 50, 52, 55, 65, 80, 88, 100, 104, 110, 130, 143, 176, 200, 208, 220, 260, 275, 286, 325, 383, 400, 440, 520, 550, 572, 650, 715, 766, 880, 1040, 1100, 1144, 1300, 1430, 1532, 1915, 2200, 2288, 2600, 2860, 3064, 3575, 3830, 4213, 4400, 4979, 5200, 5720, 6128, 7150, 7660, 8426, 9575, 9958, 11440, 14300, 15320, 16852, 19150, 19916, 21065, 24895, 28600, 30640, 33704, 38300, 39832, 42130, 49790, 54769, 57200, 67408, 76600, 79664, 84260, 99580, 105325, 109538, 124475, 153200, 168520, 199160, 210650, 219076, 248950, 273845, 337040, 398320, 421300, 438152, 497900, 547690, 842600, 876304, 995800, 1095380, 1369225, 1685200, 1991600, 2190760, 2738450, 4381520, 5476900, 10953800, 21907600]

約数ペア:

[(1, 21907600), (2, 10953800), (4, 5476900), (5, 4381520), (8, 2738450), (10, 2190760), (11, 1991600), (13, 1685200), (16, 1369225), (20, 1095380), (22, 995800), (25, 876304), (26, 842600), (40, 547690), (44, 497900), (50, 438152), (52, 421300), (55, 398320), (65, 337040), (80, 273845), (88, 248950), (100, 219076), (104, 210650), (110, 199160), (130, 168520), (143, 153200), (176, 124475), (200, 109538), (208, 105325), (220, 99580), (260, 84260), (275, 79664), (286, 76600), (325, 67408), (383, 57200), (400, 54769), (440, 49790), (520, 42130), (550, 39832), (572, 38300), (650, 33704), (715, 30640), (766, 28600), (880, 24895), (1040, 21065), (1100, 19916), (1144, 19150), (1300, 16852), (1430, 15320), (1532, 14300), (1915, 11440), (2200, 9958), (2288, 9575), (2600, 8426), (2860, 7660), (3064, 7150), (3575, 6128), (3830, 5720), (4213, 5200), (4400, 4979)]