20684700

素因数分解:

$2^2\times 3^3\times 5^2\times {\mathrm{47}}^1\times {\mathrm{163}}^1$

素因数の和:233

約数の個数: 144

約数和(自身を含む): 68328960

約数和(自身を除く): 47644260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 47, 50, 54, 60, 75, 90, 94, 100, 108, 135, 141, 150, 163, 180, 188, 225, 235, 270, 282, 300, 326, 423, 450, 470, 489, 540, 564, 652, 675, 705, 815, 846, 900, 940, 978, 1175, 1269, 1350, 1410, 1467, 1630, 1692, 1956, 2115, 2350, 2445, 2538, 2700, 2820, 2934, 3260, 3525, 4075, 4230, 4401, 4700, 4890, 5076, 5868, 6345, 7050, 7335, 7661, 8150, 8460, 8802, 9780, 10575, 12225, 12690, 14100, 14670, 15322, 16300, 17604, 21150, 22005, 22983, 24450, 25380, 29340, 30644, 31725, 36675, 38305, 42300, 44010, 45966, 48900, 63450, 68949, 73350, 76610, 88020, 91932, 110025, 114915, 126900, 137898, 146700, 153220, 191525, 206847, 220050, 229830, 275796, 344745, 383050, 413694, 440100, 459660, 574575, 689490, 766100, 827388, 1034235, 1149150, 1378980, 1723725, 2068470, 2298300, 3447450, 4136940, 5171175, 6894900, 10342350, 20684700]

約数ペア:

[(1, 20684700), (2, 10342350), (3, 6894900), (4, 5171175), (5, 4136940), (6, 3447450), (9, 2298300), (10, 2068470), (12, 1723725), (15, 1378980), (18, 1149150), (20, 1034235), (25, 827388), (27, 766100), (30, 689490), (36, 574575), (45, 459660), (47, 440100), (50, 413694), (54, 383050), (60, 344745), (75, 275796), (90, 229830), (94, 220050), (100, 206847), (108, 191525), (135, 153220), (141, 146700), (150, 137898), (163, 126900), (180, 114915), (188, 110025), (225, 91932), (235, 88020), (270, 76610), (282, 73350), (300, 68949), (326, 63450), (423, 48900), (450, 45966), (470, 44010), (489, 42300), (540, 38305), (564, 36675), (652, 31725), (675, 30644), (705, 29340), (815, 25380), (846, 24450), (900, 22983), (940, 22005), (978, 21150), (1175, 17604), (1269, 16300), (1350, 15322), (1410, 14670), (1467, 14100), (1630, 12690), (1692, 12225), (1956, 10575), (2115, 9780), (2350, 8802), (2445, 8460), (2538, 8150), (2700, 7661), (2820, 7335), (2934, 7050), (3260, 6345), (3525, 5868), (4075, 5076), (4230, 4890), (4401, 4700)]