22519980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{293}}^1$

素因数の和:376

約数の個数: 144

約数和(自身を含む): 79619904

約数和(自身を除く): 57099924

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 61, 63, 70, 84, 90, 105, 122, 126, 140, 180, 183, 210, 244, 252, 293, 305, 315, 366, 420, 427, 549, 586, 610, 630, 732, 854, 879, 915, 1098, 1172, 1220, 1260, 1281, 1465, 1708, 1758, 1830, 2051, 2135, 2196, 2562, 2637, 2745, 2930, 3516, 3660, 3843, 4102, 4270, 4395, 5124, 5274, 5490, 5860, 6153, 6405, 7686, 8204, 8540, 8790, 10255, 10548, 10980, 12306, 12810, 13185, 15372, 17580, 17873, 18459, 19215, 20510, 24612, 25620, 26370, 30765, 35746, 36918, 38430, 41020, 52740, 53619, 61530, 71492, 73836, 76860, 89365, 92295, 107238, 123060, 125111, 160857, 178730, 184590, 214476, 250222, 268095, 321714, 357460, 369180, 375333, 500444, 536190, 625555, 643428, 750666, 804285, 1072380, 1125999, 1251110, 1501332, 1608570, 1876665, 2251998, 2502220, 3217140, 3753330, 4503996, 5629995, 7506660, 11259990, 22519980]

約数ペア:

[(1, 22519980), (2, 11259990), (3, 7506660), (4, 5629995), (5, 4503996), (6, 3753330), (7, 3217140), (9, 2502220), (10, 2251998), (12, 1876665), (14, 1608570), (15, 1501332), (18, 1251110), (20, 1125999), (21, 1072380), (28, 804285), (30, 750666), (35, 643428), (36, 625555), (42, 536190), (45, 500444), (60, 375333), (61, 369180), (63, 357460), (70, 321714), (84, 268095), (90, 250222), (105, 214476), (122, 184590), (126, 178730), (140, 160857), (180, 125111), (183, 123060), (210, 107238), (244, 92295), (252, 89365), (293, 76860), (305, 73836), (315, 71492), (366, 61530), (420, 53619), (427, 52740), (549, 41020), (586, 38430), (610, 36918), (630, 35746), (732, 30765), (854, 26370), (879, 25620), (915, 24612), (1098, 20510), (1172, 19215), (1220, 18459), (1260, 17873), (1281, 17580), (1465, 15372), (1708, 13185), (1758, 12810), (1830, 12306), (2051, 10980), (2135, 10548), (2196, 10255), (2562, 8790), (2637, 8540), (2745, 8204), (2930, 7686), (3516, 6405), (3660, 6153), (3843, 5860), (4102, 5490), (4270, 5274), (4395, 5124)]