78025220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{997}}^1$

素因数の和:1069

約数の個数: 96

約数和(自身を含む): 206562048

約数和(自身を除く): 128536828

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 43, 52, 65, 70, 86, 91, 130, 140, 172, 182, 215, 260, 301, 364, 430, 455, 559, 602, 860, 910, 997, 1118, 1204, 1505, 1820, 1994, 2236, 2795, 3010, 3913, 3988, 4985, 5590, 6020, 6979, 7826, 9970, 11180, 12961, 13958, 15652, 19565, 19940, 25922, 27916, 34895, 39130, 42871, 51844, 64805, 69790, 78260, 85742, 90727, 129610, 139580, 171484, 181454, 214355, 259220, 300097, 362908, 428710, 453635, 557323, 600194, 857420, 907270, 1114646, 1200388, 1500485, 1814540, 2229292, 2786615, 3000970, 3901261, 5573230, 6001940, 7802522, 11146460, 15605044, 19506305, 39012610, 78025220]

約数ペア:

[(1, 78025220), (2, 39012610), (4, 19506305), (5, 15605044), (7, 11146460), (10, 7802522), (13, 6001940), (14, 5573230), (20, 3901261), (26, 3000970), (28, 2786615), (35, 2229292), (43, 1814540), (52, 1500485), (65, 1200388), (70, 1114646), (86, 907270), (91, 857420), (130, 600194), (140, 557323), (172, 453635), (182, 428710), (215, 362908), (260, 300097), (301, 259220), (364, 214355), (430, 181454), (455, 171484), (559, 139580), (602, 129610), (860, 90727), (910, 85742), (997, 78260), (1118, 69790), (1204, 64805), (1505, 51844), (1820, 42871), (1994, 39130), (2236, 34895), (2795, 27916), (3010, 25922), (3913, 19940), (3988, 19565), (4985, 15652), (5590, 13958), (6020, 12961), (6979, 11180), (7826, 9970)]