20018400

素因数分解:

$2^5\times 3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{439}}^1$

素因数の和:481

約数の個数: 144

約数和(自身を含む): 68745600

約数和(自身を除く): 48727200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 25, 30, 32, 38, 40, 48, 50, 57, 60, 75, 76, 80, 95, 96, 100, 114, 120, 150, 152, 160, 190, 200, 228, 240, 285, 300, 304, 380, 400, 439, 456, 475, 480, 570, 600, 608, 760, 800, 878, 912, 950, 1140, 1200, 1317, 1425, 1520, 1756, 1824, 1900, 2195, 2280, 2400, 2634, 2850, 3040, 3512, 3800, 4390, 4560, 5268, 5700, 6585, 7024, 7600, 8341, 8780, 9120, 10536, 10975, 11400, 13170, 14048, 15200, 16682, 17560, 21072, 21950, 22800, 25023, 26340, 32925, 33364, 35120, 41705, 42144, 43900, 45600, 50046, 52680, 65850, 66728, 70240, 83410, 87800, 100092, 105360, 125115, 131700, 133456, 166820, 175600, 200184, 208525, 210720, 250230, 263400, 266912, 333640, 351200, 400368, 417050, 500460, 526800, 625575, 667280, 800736, 834100, 1000920, 1053600, 1251150, 1334560, 1668200, 2001840, 2502300, 3336400, 4003680, 5004600, 6672800, 10009200, 20018400]

約数ペア:

[(1, 20018400), (2, 10009200), (3, 6672800), (4, 5004600), (5, 4003680), (6, 3336400), (8, 2502300), (10, 2001840), (12, 1668200), (15, 1334560), (16, 1251150), (19, 1053600), (20, 1000920), (24, 834100), (25, 800736), (30, 667280), (32, 625575), (38, 526800), (40, 500460), (48, 417050), (50, 400368), (57, 351200), (60, 333640), (75, 266912), (76, 263400), (80, 250230), (95, 210720), (96, 208525), (100, 200184), (114, 175600), (120, 166820), (150, 133456), (152, 131700), (160, 125115), (190, 105360), (200, 100092), (228, 87800), (240, 83410), (285, 70240), (300, 66728), (304, 65850), (380, 52680), (400, 50046), (439, 45600), (456, 43900), (475, 42144), (480, 41705), (570, 35120), (600, 33364), (608, 32925), (760, 26340), (800, 25023), (878, 22800), (912, 21950), (950, 21072), (1140, 17560), (1200, 16682), (1317, 15200), (1425, 14048), (1520, 13170), (1756, 11400), (1824, 10975), (1900, 10536), (2195, 9120), (2280, 8780), (2400, 8341), (2634, 7600), (2850, 7024), (3040, 6585), (3512, 5700), (3800, 5268), (4390, 4560)]