19775700

素因数分解:

$2^2\times 3^2\times 5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:143

約数の個数: 216

約数和(自身を含む): 73481408

約数和(自身を除く): 53705708

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 25, 28, 30, 35, 36, 42, 43, 45, 50, 60, 63, 70, 73, 75, 84, 86, 90, 100, 105, 126, 129, 140, 146, 150, 172, 175, 180, 210, 215, 219, 225, 252, 258, 292, 300, 301, 315, 350, 365, 387, 420, 430, 438, 450, 511, 516, 525, 602, 630, 645, 657, 700, 730, 774, 860, 876, 900, 903, 1022, 1050, 1075, 1095, 1204, 1260, 1290, 1314, 1460, 1505, 1533, 1548, 1575, 1806, 1825, 1935, 2044, 2100, 2150, 2190, 2555, 2580, 2628, 2709, 3010, 3066, 3139, 3150, 3225, 3285, 3612, 3650, 3870, 4300, 4380, 4515, 4599, 5110, 5418, 5475, 6020, 6132, 6278, 6300, 6450, 6570, 7300, 7525, 7665, 7740, 9030, 9198, 9417, 9675, 10220, 10836, 10950, 12556, 12775, 12900, 13140, 13545, 15050, 15330, 15695, 16425, 18060, 18396, 18834, 19350, 21900, 21973, 22575, 22995, 25550, 27090, 28251, 30100, 30660, 31390, 32850, 37668, 38325, 38700, 43946, 45150, 45990, 47085, 51100, 54180, 56502, 62780, 65700, 65919, 67725, 76650, 78475, 87892, 90300, 91980, 94170, 109865, 113004, 114975, 131838, 135450, 141255, 153300, 156950, 188340, 197757, 219730, 229950, 235425, 263676, 270900, 282510, 313900, 329595, 395514, 439460, 459900, 470850, 549325, 565020, 659190, 706275, 791028, 941700, 988785, 1098650, 1318380, 1412550, 1647975, 1977570, 2197300, 2825100, 3295950, 3955140, 4943925, 6591900, 9887850, 19775700]

約数ペア:

[(1, 19775700), (2, 9887850), (3, 6591900), (4, 4943925), (5, 3955140), (6, 3295950), (7, 2825100), (9, 2197300), (10, 1977570), (12, 1647975), (14, 1412550), (15, 1318380), (18, 1098650), (20, 988785), (21, 941700), (25, 791028), (28, 706275), (30, 659190), (35, 565020), (36, 549325), (42, 470850), (43, 459900), (45, 439460), (50, 395514), (60, 329595), (63, 313900), (70, 282510), (73, 270900), (75, 263676), (84, 235425), (86, 229950), (90, 219730), (100, 197757), (105, 188340), (126, 156950), (129, 153300), (140, 141255), (146, 135450), (150, 131838), (172, 114975), (175, 113004), (180, 109865), (210, 94170), (215, 91980), (219, 90300), (225, 87892), (252, 78475), (258, 76650), (292, 67725), (300, 65919), (301, 65700), (315, 62780), (350, 56502), (365, 54180), (387, 51100), (420, 47085), (430, 45990), (438, 45150), (450, 43946), (511, 38700), (516, 38325), (525, 37668), (602, 32850), (630, 31390), (645, 30660), (657, 30100), (700, 28251), (730, 27090), (774, 25550), (860, 22995), (876, 22575), (900, 21973), (903, 21900), (1022, 19350), (1050, 18834), (1075, 18396), (1095, 18060), (1204, 16425), (1260, 15695), (1290, 15330), (1314, 15050), (1460, 13545), (1505, 13140), (1533, 12900), (1548, 12775), (1575, 12556), (1806, 10950), (1825, 10836), (1935, 10220), (2044, 9675), (2100, 9417), (2150, 9198), (2190, 9030), (2555, 7740), (2580, 7665), (2628, 7525), (2709, 7300), (3010, 6570), (3066, 6450), (3139, 6300), (3150, 6278), (3225, 6132), (3285, 6020), (3612, 5475), (3650, 5418), (3870, 5110), (4300, 4599), (4380, 4515)]