20688049300

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{62939}}^1$

素因数の和:63145

約数の個数: 72

約数和(自身を含む): 47529770400

約数和(自身を除く): 26841721100

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 173, 190, 346, 380, 475, 692, 865, 950, 1730, 1900, 3287, 3460, 4325, 6574, 8650, 13148, 16435, 17300, 32870, 62939, 65740, 82175, 125878, 164350, 251756, 314695, 328700, 629390, 1195841, 1258780, 1573475, 2391682, 3146950, 4783364, 5979205, 6293900, 10888447, 11958410, 21776894, 23916820, 29896025, 43553788, 54442235, 59792050, 108884470, 119584100, 206880493, 217768940, 272211175, 413760986, 544422350, 827521972, 1034402465, 1088844700, 2068804930, 4137609860, 5172012325, 10344024650, 20688049300]

約数ペア:

[(1, 20688049300), (2, 10344024650), (4, 5172012325), (5, 4137609860), (10, 2068804930), (19, 1088844700), (20, 1034402465), (25, 827521972), (38, 544422350), (50, 413760986), (76, 272211175), (95, 217768940), (100, 206880493), (173, 119584100), (190, 108884470), (346, 59792050), (380, 54442235), (475, 43553788), (692, 29896025), (865, 23916820), (950, 21776894), (1730, 11958410), (1900, 10888447), (3287, 6293900), (3460, 5979205), (4325, 4783364), (6574, 3146950), (8650, 2391682), (13148, 1573475), (16435, 1258780), (17300, 1195841), (32870, 629390), (62939, 328700), (65740, 314695), (82175, 251756), (125878, 164350)]