20849850

素因数分解:

$2^1\times 3^2\times 5^2\times 7^1\times {\mathrm{6619}}^1$

素因数の和:6644

約数の個数: 72

約数和(自身を含む): 64028640

約数和(自身を除く): 43178790

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 30, 35, 42, 45, 50, 63, 70, 75, 90, 105, 126, 150, 175, 210, 225, 315, 350, 450, 525, 630, 1050, 1575, 3150, 6619, 13238, 19857, 33095, 39714, 46333, 59571, 66190, 92666, 99285, 119142, 138999, 165475, 198570, 231665, 277998, 297855, 330950, 416997, 463330, 496425, 595710, 694995, 833994, 992850, 1158325, 1389990, 1489275, 2084985, 2316650, 2978550, 3474975, 4169970, 6949950, 10424925, 20849850]

約数ペア:

[(1, 20849850), (2, 10424925), (3, 6949950), (5, 4169970), (6, 3474975), (7, 2978550), (9, 2316650), (10, 2084985), (14, 1489275), (15, 1389990), (18, 1158325), (21, 992850), (25, 833994), (30, 694995), (35, 595710), (42, 496425), (45, 463330), (50, 416997), (63, 330950), (70, 297855), (75, 277998), (90, 231665), (105, 198570), (126, 165475), (150, 138999), (175, 119142), (210, 99285), (225, 92666), (315, 66190), (350, 59571), (450, 46333), (525, 39714), (630, 33095), (1050, 19857), (1575, 13238), (3150, 6619)]