28859740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{157}}^1$

素因数の和:287

約数の個数: 96

約数和(自身を含む): 75809664

約数和(自身を除く): 46949924

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 101, 130, 140, 157, 182, 202, 260, 314, 364, 404, 455, 505, 628, 707, 785, 910, 1010, 1099, 1313, 1414, 1570, 1820, 2020, 2041, 2198, 2626, 2828, 3140, 3535, 4082, 4396, 5252, 5495, 6565, 7070, 8164, 9191, 10205, 10990, 13130, 14140, 14287, 15857, 18382, 20410, 21980, 26260, 28574, 31714, 36764, 40820, 45955, 57148, 63428, 71435, 79285, 91910, 110999, 142870, 158570, 183820, 206141, 221998, 285740, 317140, 412282, 443996, 554995, 824564, 1030705, 1109990, 1442987, 2061410, 2219980, 2885974, 4122820, 5771948, 7214935, 14429870, 28859740]

約数ペア:

[(1, 28859740), (2, 14429870), (4, 7214935), (5, 5771948), (7, 4122820), (10, 2885974), (13, 2219980), (14, 2061410), (20, 1442987), (26, 1109990), (28, 1030705), (35, 824564), (52, 554995), (65, 443996), (70, 412282), (91, 317140), (101, 285740), (130, 221998), (140, 206141), (157, 183820), (182, 158570), (202, 142870), (260, 110999), (314, 91910), (364, 79285), (404, 71435), (455, 63428), (505, 57148), (628, 45955), (707, 40820), (785, 36764), (910, 31714), (1010, 28574), (1099, 26260), (1313, 21980), (1414, 20410), (1570, 18382), (1820, 15857), (2020, 14287), (2041, 14140), (2198, 13130), (2626, 10990), (2828, 10205), (3140, 9191), (3535, 8164), (4082, 7070), (4396, 6565), (5252, 5495)]