19886923540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^3\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{331}}^1$

素因数の和:471

約数の個数: 192

約数和(自身を含む): 48095421696

約数和(自身を除く): 28208498156

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 61, 74, 110, 121, 122, 148, 185, 220, 242, 244, 305, 331, 370, 407, 484, 605, 610, 662, 671, 740, 814, 1210, 1220, 1324, 1331, 1342, 1628, 1655, 2035, 2257, 2420, 2662, 2684, 3310, 3355, 3641, 4070, 4477, 4514, 5324, 6620, 6655, 6710, 7282, 7381, 8140, 8954, 9028, 11285, 12247, 13310, 13420, 14564, 14762, 17908, 18205, 20191, 22385, 22570, 24494, 24827, 26620, 29524, 36410, 36905, 40051, 40382, 44770, 45140, 48988, 49247, 49654, 61235, 72820, 73810, 80102, 80764, 81191, 89540, 98494, 99308, 100955, 122470, 124135, 134717, 147620, 160204, 162382, 196988, 200255, 201910, 222101, 244940, 246235, 248270, 269434, 273097, 324764, 400510, 403820, 405955, 440561, 444202, 492470, 496540, 538868, 546194, 673585, 747067, 801020, 811910, 881122, 888404, 984940, 1092388, 1110505, 1347170, 1365485, 1481887, 1494134, 1623820, 1762244, 2202805, 2221010, 2443111, 2694340, 2730970, 2963774, 2988268, 3004067, 3735335, 4405610, 4442020, 4886222, 5461940, 5927548, 6008134, 7409435, 7470670, 8217737, 8811220, 9772444, 12016268, 12215555, 14818870, 14941340, 15020335, 16300757, 16435474, 24431110, 26874221, 29637740, 30040670, 32601514, 32870948, 41088685, 48862220, 53748442, 60081340, 65203028, 81503785, 82177370, 90395107, 107496884, 134371105, 163007570, 164354740, 180790214, 268742210, 326015140, 361580428, 451975535, 537484420, 903951070, 994346177, 1807902140, 1988692354, 3977384708, 4971730885, 9943461770, 19886923540]

約数ペア:

[(1, 19886923540), (2, 9943461770), (4, 4971730885), (5, 3977384708), (10, 1988692354), (11, 1807902140), (20, 994346177), (22, 903951070), (37, 537484420), (44, 451975535), (55, 361580428), (61, 326015140), (74, 268742210), (110, 180790214), (121, 164354740), (122, 163007570), (148, 134371105), (185, 107496884), (220, 90395107), (242, 82177370), (244, 81503785), (305, 65203028), (331, 60081340), (370, 53748442), (407, 48862220), (484, 41088685), (605, 32870948), (610, 32601514), (662, 30040670), (671, 29637740), (740, 26874221), (814, 24431110), (1210, 16435474), (1220, 16300757), (1324, 15020335), (1331, 14941340), (1342, 14818870), (1628, 12215555), (1655, 12016268), (2035, 9772444), (2257, 8811220), (2420, 8217737), (2662, 7470670), (2684, 7409435), (3310, 6008134), (3355, 5927548), (3641, 5461940), (4070, 4886222), (4477, 4442020), (4514, 4405610), (5324, 3735335), (6620, 3004067), (6655, 2988268), (6710, 2963774), (7282, 2730970), (7381, 2694340), (8140, 2443111), (8954, 2221010), (9028, 2202805), (11285, 1762244), (12247, 1623820), (13310, 1494134), (13420, 1481887), (14564, 1365485), (14762, 1347170), (17908, 1110505), (18205, 1092388), (20191, 984940), (22385, 888404), (22570, 881122), (24494, 811910), (24827, 801020), (26620, 747067), (29524, 673585), (36410, 546194), (36905, 538868), (40051, 496540), (40382, 492470), (44770, 444202), (45140, 440561), (48988, 405955), (49247, 403820), (49654, 400510), (61235, 324764), (72820, 273097), (73810, 269434), (80102, 248270), (80764, 246235), (81191, 244940), (89540, 222101), (98494, 201910), (99308, 200255), (100955, 196988), (122470, 162382), (124135, 160204), (134717, 147620)]