393755180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{997}}^1$

素因数の和:1064

約数の個数: 144

約数和(自身を含む): 1070366976

約数和(自身を除く): 676611796

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 31, 35, 49, 52, 62, 65, 70, 91, 98, 124, 130, 140, 155, 182, 196, 217, 245, 260, 310, 364, 403, 434, 455, 490, 620, 637, 806, 868, 910, 980, 997, 1085, 1274, 1519, 1612, 1820, 1994, 2015, 2170, 2548, 2821, 3038, 3185, 3988, 4030, 4340, 4985, 5642, 6076, 6370, 6979, 7595, 8060, 9970, 11284, 12740, 12961, 13958, 14105, 15190, 19747, 19940, 25922, 27916, 28210, 30380, 30907, 34895, 39494, 48853, 51844, 56420, 61814, 64805, 69790, 78988, 90727, 97706, 98735, 123628, 129610, 139580, 154535, 181454, 195412, 197470, 216349, 244265, 259220, 309070, 362908, 394940, 401791, 432698, 453635, 488530, 618140, 635089, 803582, 865396, 907270, 977060, 1081745, 1270178, 1514443, 1607164, 1814540, 2008955, 2163490, 2540356, 2812537, 3028886, 3175445, 4017910, 4326980, 5625074, 6057772, 6350890, 7572215, 8035820, 11250148, 12701780, 14062685, 15144430, 19687759, 28125370, 30288860, 39375518, 56250740, 78751036, 98438795, 196877590, 393755180]

約数ペア:

[(1, 393755180), (2, 196877590), (4, 98438795), (5, 78751036), (7, 56250740), (10, 39375518), (13, 30288860), (14, 28125370), (20, 19687759), (26, 15144430), (28, 14062685), (31, 12701780), (35, 11250148), (49, 8035820), (52, 7572215), (62, 6350890), (65, 6057772), (70, 5625074), (91, 4326980), (98, 4017910), (124, 3175445), (130, 3028886), (140, 2812537), (155, 2540356), (182, 2163490), (196, 2008955), (217, 1814540), (245, 1607164), (260, 1514443), (310, 1270178), (364, 1081745), (403, 977060), (434, 907270), (455, 865396), (490, 803582), (620, 635089), (637, 618140), (806, 488530), (868, 453635), (910, 432698), (980, 401791), (997, 394940), (1085, 362908), (1274, 309070), (1519, 259220), (1612, 244265), (1820, 216349), (1994, 197470), (2015, 195412), (2170, 181454), (2548, 154535), (2821, 139580), (3038, 129610), (3185, 123628), (3988, 98735), (4030, 97706), (4340, 90727), (4985, 78988), (5642, 69790), (6076, 64805), (6370, 61814), (6979, 56420), (7595, 51844), (8060, 48853), (9970, 39494), (11284, 34895), (12740, 30907), (12961, 30380), (13958, 28210), (14105, 27916), (15190, 25922), (19747, 19940)]