1620939780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{15289}}^1$

素因数の和:15354

約数の個数: 144

約数和(自身を含む): 5342937600

約数和(自身を除く): 3721997820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 31, 36, 38, 45, 57, 60, 62, 76, 90, 93, 95, 114, 124, 155, 171, 180, 186, 190, 228, 279, 285, 310, 342, 372, 380, 465, 558, 570, 589, 620, 684, 855, 930, 1116, 1140, 1178, 1395, 1710, 1767, 1860, 2356, 2790, 2945, 3420, 3534, 5301, 5580, 5890, 7068, 8835, 10602, 11780, 15289, 17670, 21204, 26505, 30578, 35340, 45867, 53010, 61156, 76445, 91734, 106020, 137601, 152890, 183468, 229335, 275202, 290491, 305780, 458670, 473959, 550404, 580982, 688005, 871473, 917340, 947918, 1161964, 1376010, 1421877, 1452455, 1742946, 1895836, 2369795, 2614419, 2752020, 2843754, 2904910, 3485892, 4265631, 4357365, 4739590, 5228838, 5687508, 5809820, 7109385, 8531262, 8714730, 9005221, 9479180, 10457676, 13072095, 14218770, 17062524, 17429460, 18010442, 21328155, 26144190, 27015663, 28437540, 36020884, 42656310, 45026105, 52288380, 54031326, 81046989, 85312620, 90052210, 108062652, 135078315, 162093978, 180104420, 270156630, 324187956, 405234945, 540313260, 810469890, 1620939780]

約数ペア:

[(1, 1620939780), (2, 810469890), (3, 540313260), (4, 405234945), (5, 324187956), (6, 270156630), (9, 180104420), (10, 162093978), (12, 135078315), (15, 108062652), (18, 90052210), (19, 85312620), (20, 81046989), (30, 54031326), (31, 52288380), (36, 45026105), (38, 42656310), (45, 36020884), (57, 28437540), (60, 27015663), (62, 26144190), (76, 21328155), (90, 18010442), (93, 17429460), (95, 17062524), (114, 14218770), (124, 13072095), (155, 10457676), (171, 9479180), (180, 9005221), (186, 8714730), (190, 8531262), (228, 7109385), (279, 5809820), (285, 5687508), (310, 5228838), (342, 4739590), (372, 4357365), (380, 4265631), (465, 3485892), (558, 2904910), (570, 2843754), (589, 2752020), (620, 2614419), (684, 2369795), (855, 1895836), (930, 1742946), (1116, 1452455), (1140, 1421877), (1178, 1376010), (1395, 1161964), (1710, 947918), (1767, 917340), (1860, 871473), (2356, 688005), (2790, 580982), (2945, 550404), (3420, 473959), (3534, 458670), (5301, 305780), (5580, 290491), (5890, 275202), (7068, 229335), (8835, 183468), (10602, 152890), (11780, 137601), (15289, 106020), (17670, 91734), (21204, 76445), (26505, 61156), (30578, 53010), (35340, 45867)]