19435680

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{409}}^1$

素因数の和:444

約数の個数: 192

約数和(自身を含む): 74390400

約数和(自身を除く): 54954720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 27, 30, 32, 33, 36, 40, 44, 45, 48, 54, 55, 60, 66, 72, 80, 88, 90, 96, 99, 108, 110, 120, 132, 135, 144, 160, 165, 176, 180, 198, 216, 220, 240, 264, 270, 288, 297, 330, 352, 360, 396, 409, 432, 440, 480, 495, 528, 540, 594, 660, 720, 792, 818, 864, 880, 990, 1056, 1080, 1188, 1227, 1320, 1440, 1485, 1584, 1636, 1760, 1980, 2045, 2160, 2376, 2454, 2640, 2970, 3168, 3272, 3681, 3960, 4090, 4320, 4499, 4752, 4908, 5280, 5940, 6135, 6544, 7362, 7920, 8180, 8998, 9504, 9816, 11043, 11880, 12270, 13088, 13497, 14724, 15840, 16360, 17996, 18405, 19632, 22086, 22495, 23760, 24540, 26994, 29448, 32720, 35992, 36810, 39264, 40491, 44172, 44990, 47520, 49080, 53988, 55215, 58896, 65440, 67485, 71984, 73620, 80982, 88344, 89980, 98160, 107976, 110430, 117792, 121473, 134970, 143968, 147240, 161964, 176688, 179960, 196320, 202455, 215952, 220860, 242946, 269940, 294480, 323928, 353376, 359920, 404910, 431904, 441720, 485892, 539880, 588960, 607365, 647856, 719840, 809820, 883440, 971784, 1079760, 1214730, 1295712, 1619640, 1766880, 1943568, 2159520, 2429460, 3239280, 3887136, 4858920, 6478560, 9717840, 19435680]

約数ペア:

[(1, 19435680), (2, 9717840), (3, 6478560), (4, 4858920), (5, 3887136), (6, 3239280), (8, 2429460), (9, 2159520), (10, 1943568), (11, 1766880), (12, 1619640), (15, 1295712), (16, 1214730), (18, 1079760), (20, 971784), (22, 883440), (24, 809820), (27, 719840), (30, 647856), (32, 607365), (33, 588960), (36, 539880), (40, 485892), (44, 441720), (45, 431904), (48, 404910), (54, 359920), (55, 353376), (60, 323928), (66, 294480), (72, 269940), (80, 242946), (88, 220860), (90, 215952), (96, 202455), (99, 196320), (108, 179960), (110, 176688), (120, 161964), (132, 147240), (135, 143968), (144, 134970), (160, 121473), (165, 117792), (176, 110430), (180, 107976), (198, 98160), (216, 89980), (220, 88344), (240, 80982), (264, 73620), (270, 71984), (288, 67485), (297, 65440), (330, 58896), (352, 55215), (360, 53988), (396, 49080), (409, 47520), (432, 44990), (440, 44172), (480, 40491), (495, 39264), (528, 36810), (540, 35992), (594, 32720), (660, 29448), (720, 26994), (792, 24540), (818, 23760), (864, 22495), (880, 22086), (990, 19632), (1056, 18405), (1080, 17996), (1188, 16360), (1227, 15840), (1320, 14724), (1440, 13497), (1485, 13088), (1584, 12270), (1636, 11880), (1760, 11043), (1980, 9816), (2045, 9504), (2160, 8998), (2376, 8180), (2454, 7920), (2640, 7362), (2970, 6544), (3168, 6135), (3272, 5940), (3681, 5280), (3960, 4908), (4090, 4752), (4320, 4499)]