19782900

素因数分解:

$2^2\times 3^3\times 5^2\times {\mathrm{17}}^1\times {\mathrm{431}}^1$

素因数の和:471

約数の個数: 144

約数和(自身を含む): 67495680

約数和(自身を除く): 47712780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 25, 27, 30, 34, 36, 45, 50, 51, 54, 60, 68, 75, 85, 90, 100, 102, 108, 135, 150, 153, 170, 180, 204, 225, 255, 270, 300, 306, 340, 425, 431, 450, 459, 510, 540, 612, 675, 765, 850, 862, 900, 918, 1020, 1275, 1293, 1350, 1530, 1700, 1724, 1836, 2155, 2295, 2550, 2586, 2700, 3060, 3825, 3879, 4310, 4590, 5100, 5172, 6465, 7327, 7650, 7758, 8620, 9180, 10775, 11475, 11637, 12930, 14654, 15300, 15516, 19395, 21550, 21981, 22950, 23274, 25860, 29308, 32325, 36635, 38790, 43100, 43962, 45900, 46548, 58185, 64650, 65943, 73270, 77580, 87924, 96975, 109905, 116370, 129300, 131886, 146540, 183175, 193950, 197829, 219810, 232740, 263772, 290925, 329715, 366350, 387900, 395658, 439620, 549525, 581850, 659430, 732700, 791316, 989145, 1099050, 1163700, 1318860, 1648575, 1978290, 2198100, 3297150, 3956580, 4945725, 6594300, 9891450, 19782900]

約数ペア:

[(1, 19782900), (2, 9891450), (3, 6594300), (4, 4945725), (5, 3956580), (6, 3297150), (9, 2198100), (10, 1978290), (12, 1648575), (15, 1318860), (17, 1163700), (18, 1099050), (20, 989145), (25, 791316), (27, 732700), (30, 659430), (34, 581850), (36, 549525), (45, 439620), (50, 395658), (51, 387900), (54, 366350), (60, 329715), (68, 290925), (75, 263772), (85, 232740), (90, 219810), (100, 197829), (102, 193950), (108, 183175), (135, 146540), (150, 131886), (153, 129300), (170, 116370), (180, 109905), (204, 96975), (225, 87924), (255, 77580), (270, 73270), (300, 65943), (306, 64650), (340, 58185), (425, 46548), (431, 45900), (450, 43962), (459, 43100), (510, 38790), (540, 36635), (612, 32325), (675, 29308), (765, 25860), (850, 23274), (862, 22950), (900, 21981), (918, 21550), (1020, 19395), (1275, 15516), (1293, 15300), (1350, 14654), (1530, 12930), (1700, 11637), (1724, 11475), (1836, 10775), (2155, 9180), (2295, 8620), (2550, 7758), (2586, 7650), (2700, 7327), (3060, 6465), (3825, 5172), (3879, 5100), (4310, 4590)]