20164725

素因数分解:

$3^2\times 5^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{59}}^1$

素因数の和:120

約数の個数: 108

約数和(自身を含む): 44104320

約数和(自身を除く): 23939595

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 31, 35, 45, 49, 59, 63, 75, 93, 105, 147, 155, 175, 177, 217, 225, 245, 279, 295, 315, 413, 441, 465, 525, 531, 651, 735, 775, 885, 1085, 1225, 1239, 1395, 1475, 1519, 1575, 1829, 1953, 2065, 2205, 2325, 2655, 2891, 3255, 3675, 3717, 4425, 4557, 5425, 5487, 6195, 6975, 7595, 8673, 9145, 9765, 10325, 11025, 12803, 13275, 13671, 14455, 16275, 16461, 18585, 22785, 26019, 27435, 30975, 37975, 38409, 43365, 45725, 48825, 64015, 68355, 72275, 82305, 89621, 92925, 113925, 115227, 130095, 137175, 192045, 216825, 268863, 320075, 341775, 411525, 448105, 576135, 650475, 806589, 960225, 1344315, 2240525, 2880675, 4032945, 6721575, 20164725]

約数ペア:

[(1, 20164725), (3, 6721575), (5, 4032945), (7, 2880675), (9, 2240525), (15, 1344315), (21, 960225), (25, 806589), (31, 650475), (35, 576135), (45, 448105), (49, 411525), (59, 341775), (63, 320075), (75, 268863), (93, 216825), (105, 192045), (147, 137175), (155, 130095), (175, 115227), (177, 113925), (217, 92925), (225, 89621), (245, 82305), (279, 72275), (295, 68355), (315, 64015), (413, 48825), (441, 45725), (465, 43365), (525, 38409), (531, 37975), (651, 30975), (735, 27435), (775, 26019), (885, 22785), (1085, 18585), (1225, 16461), (1239, 16275), (1395, 14455), (1475, 13671), (1519, 13275), (1575, 12803), (1829, 11025), (1953, 10325), (2065, 9765), (2205, 9145), (2325, 8673), (2655, 7595), (2891, 6975), (3255, 6195), (3675, 5487), (3717, 5425), (4425, 4557)]