21547500

素因数分解:

$2^2\times 3^1\times 5^4\times {\mathrm{13}}^2\times {\mathrm{17}}^1$

素因数の和:70

約数の個数: 180

約数和(自身を含む): 72033192

約数和(自身を除く): 50485692

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 17, 20, 25, 26, 30, 34, 39, 50, 51, 52, 60, 65, 68, 75, 78, 85, 100, 102, 125, 130, 150, 156, 169, 170, 195, 204, 221, 250, 255, 260, 300, 325, 338, 340, 375, 390, 425, 442, 500, 507, 510, 625, 650, 663, 676, 750, 780, 845, 850, 884, 975, 1014, 1020, 1105, 1250, 1275, 1300, 1326, 1500, 1625, 1690, 1700, 1875, 1950, 2028, 2125, 2210, 2500, 2535, 2550, 2652, 2873, 3250, 3315, 3380, 3750, 3900, 4225, 4250, 4420, 4875, 5070, 5100, 5525, 5746, 6375, 6500, 6630, 7500, 8125, 8450, 8500, 8619, 9750, 10140, 10625, 11050, 11492, 12675, 12750, 13260, 14365, 16250, 16575, 16900, 17238, 19500, 21125, 21250, 22100, 24375, 25350, 25500, 27625, 28730, 31875, 32500, 33150, 34476, 42250, 42500, 43095, 48750, 50700, 55250, 57460, 63375, 63750, 66300, 71825, 82875, 84500, 86190, 97500, 105625, 110500, 126750, 127500, 138125, 143650, 165750, 172380, 211250, 215475, 253500, 276250, 287300, 316875, 331500, 359125, 414375, 422500, 430950, 552500, 633750, 718250, 828750, 861900, 1077375, 1267500, 1436500, 1657500, 1795625, 2154750, 3591250, 4309500, 5386875, 7182500, 10773750, 21547500]

約数ペア:

[(1, 21547500), (2, 10773750), (3, 7182500), (4, 5386875), (5, 4309500), (6, 3591250), (10, 2154750), (12, 1795625), (13, 1657500), (15, 1436500), (17, 1267500), (20, 1077375), (25, 861900), (26, 828750), (30, 718250), (34, 633750), (39, 552500), (50, 430950), (51, 422500), (52, 414375), (60, 359125), (65, 331500), (68, 316875), (75, 287300), (78, 276250), (85, 253500), (100, 215475), (102, 211250), (125, 172380), (130, 165750), (150, 143650), (156, 138125), (169, 127500), (170, 126750), (195, 110500), (204, 105625), (221, 97500), (250, 86190), (255, 84500), (260, 82875), (300, 71825), (325, 66300), (338, 63750), (340, 63375), (375, 57460), (390, 55250), (425, 50700), (442, 48750), (500, 43095), (507, 42500), (510, 42250), (625, 34476), (650, 33150), (663, 32500), (676, 31875), (750, 28730), (780, 27625), (845, 25500), (850, 25350), (884, 24375), (975, 22100), (1014, 21250), (1020, 21125), (1105, 19500), (1250, 17238), (1275, 16900), (1300, 16575), (1326, 16250), (1500, 14365), (1625, 13260), (1690, 12750), (1700, 12675), (1875, 11492), (1950, 11050), (2028, 10625), (2125, 10140), (2210, 9750), (2500, 8619), (2535, 8500), (2550, 8450), (2652, 8125), (2873, 7500), (3250, 6630), (3315, 6500), (3380, 6375), (3750, 5746), (3900, 5525), (4225, 5100), (4250, 5070), (4420, 4875)]