28214340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1$

素因数の和:258

約数の個数: 192

約数和(自身を含む): 102187008

約数和(自身を除く): 73972668

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 31, 33, 35, 42, 44, 55, 60, 62, 66, 70, 77, 84, 93, 105, 110, 124, 132, 140, 154, 155, 165, 186, 197, 210, 217, 220, 231, 308, 310, 330, 341, 372, 385, 394, 420, 434, 462, 465, 591, 620, 651, 660, 682, 770, 788, 868, 924, 930, 985, 1023, 1085, 1155, 1182, 1302, 1364, 1379, 1540, 1705, 1860, 1970, 2046, 2167, 2170, 2310, 2364, 2387, 2604, 2758, 2955, 3255, 3410, 3940, 4092, 4137, 4334, 4340, 4620, 4774, 5115, 5516, 5910, 6107, 6501, 6510, 6820, 6895, 7161, 8274, 8668, 9548, 10230, 10835, 11820, 11935, 12214, 13002, 13020, 13790, 14322, 15169, 16548, 18321, 20460, 20685, 21670, 23870, 24428, 26004, 27580, 28644, 30338, 30535, 32505, 35805, 36642, 41370, 42749, 43340, 45507, 47740, 60676, 61070, 65010, 67177, 71610, 73284, 75845, 82740, 85498, 91014, 91605, 122140, 128247, 130020, 134354, 143220, 151690, 170996, 182028, 183210, 201531, 213745, 227535, 256494, 268708, 303380, 335885, 366420, 403062, 427490, 455070, 470239, 512988, 641235, 671770, 806124, 854980, 910140, 940478, 1007655, 1282470, 1343540, 1410717, 1880956, 2015310, 2351195, 2564940, 2821434, 4030620, 4702390, 5642868, 7053585, 9404780, 14107170, 28214340]

約数ペア:

[(1, 28214340), (2, 14107170), (3, 9404780), (4, 7053585), (5, 5642868), (6, 4702390), (7, 4030620), (10, 2821434), (11, 2564940), (12, 2351195), (14, 2015310), (15, 1880956), (20, 1410717), (21, 1343540), (22, 1282470), (28, 1007655), (30, 940478), (31, 910140), (33, 854980), (35, 806124), (42, 671770), (44, 641235), (55, 512988), (60, 470239), (62, 455070), (66, 427490), (70, 403062), (77, 366420), (84, 335885), (93, 303380), (105, 268708), (110, 256494), (124, 227535), (132, 213745), (140, 201531), (154, 183210), (155, 182028), (165, 170996), (186, 151690), (197, 143220), (210, 134354), (217, 130020), (220, 128247), (231, 122140), (308, 91605), (310, 91014), (330, 85498), (341, 82740), (372, 75845), (385, 73284), (394, 71610), (420, 67177), (434, 65010), (462, 61070), (465, 60676), (591, 47740), (620, 45507), (651, 43340), (660, 42749), (682, 41370), (770, 36642), (788, 35805), (868, 32505), (924, 30535), (930, 30338), (985, 28644), (1023, 27580), (1085, 26004), (1155, 24428), (1182, 23870), (1302, 21670), (1364, 20685), (1379, 20460), (1540, 18321), (1705, 16548), (1860, 15169), (1970, 14322), (2046, 13790), (2167, 13020), (2170, 13002), (2310, 12214), (2364, 11935), (2387, 11820), (2604, 10835), (2758, 10230), (2955, 9548), (3255, 8668), (3410, 8274), (3940, 7161), (4092, 6895), (4137, 6820), (4334, 6510), (4340, 6501), (4620, 6107), (4774, 5910), (5115, 5516)]