20743440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{4549}}^1$

素因数の和:4584

約数の個数: 80

約数和(自身を含む): 67704000

約数和(自身を除く): 46960560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 240, 285, 304, 380, 456, 570, 760, 912, 1140, 1520, 2280, 4549, 4560, 9098, 13647, 18196, 22745, 27294, 36392, 45490, 54588, 68235, 72784, 86431, 90980, 109176, 136470, 172862, 181960, 218352, 259293, 272940, 345724, 363920, 432155, 518586, 545880, 691448, 864310, 1037172, 1091760, 1296465, 1382896, 1728620, 2074344, 2592930, 3457240, 4148688, 5185860, 6914480, 10371720, 20743440]

約数ペア:

[(1, 20743440), (2, 10371720), (3, 6914480), (4, 5185860), (5, 4148688), (6, 3457240), (8, 2592930), (10, 2074344), (12, 1728620), (15, 1382896), (16, 1296465), (19, 1091760), (20, 1037172), (24, 864310), (30, 691448), (38, 545880), (40, 518586), (48, 432155), (57, 363920), (60, 345724), (76, 272940), (80, 259293), (95, 218352), (114, 181960), (120, 172862), (152, 136470), (190, 109176), (228, 90980), (240, 86431), (285, 72784), (304, 68235), (380, 54588), (456, 45490), (570, 36392), (760, 27294), (912, 22745), (1140, 18196), (1520, 13647), (2280, 9098), (4549, 4560)]