19430180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:106

約数の個数: 144

約数和(自身を含む): 54340608

約数和(自身を除く): 34910428

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 31, 35, 37, 44, 55, 62, 70, 74, 77, 110, 121, 124, 140, 148, 154, 155, 185, 217, 220, 242, 259, 308, 310, 341, 370, 385, 407, 434, 484, 518, 605, 620, 682, 740, 770, 814, 847, 868, 1036, 1085, 1147, 1210, 1295, 1364, 1540, 1628, 1694, 1705, 2035, 2170, 2294, 2387, 2420, 2590, 2849, 3388, 3410, 3751, 4070, 4235, 4340, 4477, 4588, 4774, 5180, 5698, 5735, 6820, 7502, 8029, 8140, 8470, 8954, 9548, 11396, 11470, 11935, 12617, 14245, 15004, 16058, 16940, 17908, 18755, 22385, 22940, 23870, 25234, 26257, 28490, 31339, 32116, 37510, 40145, 44770, 47740, 50468, 52514, 56980, 62678, 63085, 75020, 80290, 88319, 89540, 105028, 125356, 126170, 131285, 138787, 156695, 160580, 176638, 252340, 262570, 277574, 313390, 353276, 441595, 525140, 555148, 626780, 693935, 883190, 971509, 1387870, 1766380, 1943018, 2775740, 3886036, 4857545, 9715090, 19430180]

約数ペア:

[(1, 19430180), (2, 9715090), (4, 4857545), (5, 3886036), (7, 2775740), (10, 1943018), (11, 1766380), (14, 1387870), (20, 971509), (22, 883190), (28, 693935), (31, 626780), (35, 555148), (37, 525140), (44, 441595), (55, 353276), (62, 313390), (70, 277574), (74, 262570), (77, 252340), (110, 176638), (121, 160580), (124, 156695), (140, 138787), (148, 131285), (154, 126170), (155, 125356), (185, 105028), (217, 89540), (220, 88319), (242, 80290), (259, 75020), (308, 63085), (310, 62678), (341, 56980), (370, 52514), (385, 50468), (407, 47740), (434, 44770), (484, 40145), (518, 37510), (605, 32116), (620, 31339), (682, 28490), (740, 26257), (770, 25234), (814, 23870), (847, 22940), (868, 22385), (1036, 18755), (1085, 17908), (1147, 16940), (1210, 16058), (1295, 15004), (1364, 14245), (1540, 12617), (1628, 11935), (1694, 11470), (1705, 11396), (2035, 9548), (2170, 8954), (2294, 8470), (2387, 8140), (2420, 8029), (2590, 7502), (2849, 6820), (3388, 5735), (3410, 5698), (3751, 5180), (4070, 4774), (4235, 4588), (4340, 4477)]