21984780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{179}}^1$

素因数の和:303

約数の個数: 96

約数和(自身を含む): 65318400

約数和(自身を除く): 43333620

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 89, 92, 115, 138, 178, 179, 230, 267, 276, 345, 356, 358, 445, 460, 534, 537, 690, 716, 890, 895, 1068, 1074, 1335, 1380, 1780, 1790, 2047, 2148, 2670, 2685, 3580, 4094, 4117, 5340, 5370, 6141, 8188, 8234, 10235, 10740, 12282, 12351, 15931, 16468, 20470, 20585, 24564, 24702, 30705, 31862, 40940, 41170, 47793, 49404, 61410, 61755, 63724, 79655, 82340, 95586, 122820, 123510, 159310, 191172, 238965, 247020, 318620, 366413, 477930, 732826, 955860, 1099239, 1465652, 1832065, 2198478, 3664130, 4396956, 5496195, 7328260, 10992390, 21984780]

約数ペア:

[(1, 21984780), (2, 10992390), (3, 7328260), (4, 5496195), (5, 4396956), (6, 3664130), (10, 2198478), (12, 1832065), (15, 1465652), (20, 1099239), (23, 955860), (30, 732826), (46, 477930), (60, 366413), (69, 318620), (89, 247020), (92, 238965), (115, 191172), (138, 159310), (178, 123510), (179, 122820), (230, 95586), (267, 82340), (276, 79655), (345, 63724), (356, 61755), (358, 61410), (445, 49404), (460, 47793), (534, 41170), (537, 40940), (690, 31862), (716, 30705), (890, 24702), (895, 24564), (1068, 20585), (1074, 20470), (1335, 16468), (1380, 15931), (1780, 12351), (1790, 12282), (2047, 10740), (2148, 10235), (2670, 8234), (2685, 8188), (3580, 6141), (4094, 5370), (4117, 5340)]