31239960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{191}}^1$

素因数の和:281

約数の個数: 128

約数和(自身を含む): 99532800

約数和(自身を除く): 68292840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 29, 30, 40, 47, 58, 60, 87, 94, 116, 120, 141, 145, 174, 188, 191, 232, 235, 282, 290, 348, 376, 382, 435, 470, 564, 573, 580, 696, 705, 764, 870, 940, 955, 1128, 1146, 1160, 1363, 1410, 1528, 1740, 1880, 1910, 2292, 2726, 2820, 2865, 3480, 3820, 4089, 4584, 5452, 5539, 5640, 5730, 6815, 7640, 8178, 8977, 10904, 11078, 11460, 13630, 16356, 16617, 17954, 20445, 22156, 22920, 26931, 27260, 27695, 32712, 33234, 35908, 40890, 44312, 44885, 53862, 54520, 55390, 66468, 71816, 81780, 83085, 89770, 107724, 110780, 132936, 134655, 163560, 166170, 179540, 215448, 221560, 260333, 269310, 332340, 359080, 520666, 538620, 664680, 780999, 1041332, 1077240, 1301665, 1561998, 2082664, 2603330, 3123996, 3904995, 5206660, 6247992, 7809990, 10413320, 15619980, 31239960]

約数ペア:

[(1, 31239960), (2, 15619980), (3, 10413320), (4, 7809990), (5, 6247992), (6, 5206660), (8, 3904995), (10, 3123996), (12, 2603330), (15, 2082664), (20, 1561998), (24, 1301665), (29, 1077240), (30, 1041332), (40, 780999), (47, 664680), (58, 538620), (60, 520666), (87, 359080), (94, 332340), (116, 269310), (120, 260333), (141, 221560), (145, 215448), (174, 179540), (188, 166170), (191, 163560), (232, 134655), (235, 132936), (282, 110780), (290, 107724), (348, 89770), (376, 83085), (382, 81780), (435, 71816), (470, 66468), (564, 55390), (573, 54520), (580, 53862), (696, 44885), (705, 44312), (764, 40890), (870, 35908), (940, 33234), (955, 32712), (1128, 27695), (1146, 27260), (1160, 26931), (1363, 22920), (1410, 22156), (1528, 20445), (1740, 17954), (1880, 16617), (1910, 16356), (2292, 13630), (2726, 11460), (2820, 11078), (2865, 10904), (3480, 8977), (3820, 8178), (4089, 7640), (4584, 6815), (5452, 5730), (5539, 5640)]