18356940

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{857}}^1$

素因数の和:896

約数の個数: 144

約数和(自身を含む): 67459392

約数和(自身を除く): 49102452

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 17, 18, 20, 21, 28, 30, 34, 35, 36, 42, 45, 51, 60, 63, 68, 70, 84, 85, 90, 102, 105, 119, 126, 140, 153, 170, 180, 204, 210, 238, 252, 255, 306, 315, 340, 357, 420, 476, 510, 595, 612, 630, 714, 765, 857, 1020, 1071, 1190, 1260, 1428, 1530, 1714, 1785, 2142, 2380, 2571, 3060, 3428, 3570, 4284, 4285, 5142, 5355, 5999, 7140, 7713, 8570, 10284, 10710, 11998, 12855, 14569, 15426, 17140, 17997, 21420, 23996, 25710, 29138, 29995, 30852, 35994, 38565, 43707, 51420, 53991, 58276, 59990, 71988, 72845, 77130, 87414, 89985, 101983, 107982, 119980, 131121, 145690, 154260, 174828, 179970, 203966, 215964, 218535, 262242, 269955, 291380, 305949, 359940, 407932, 437070, 509915, 524484, 539910, 611898, 655605, 874140, 917847, 1019830, 1079820, 1223796, 1311210, 1529745, 1835694, 2039660, 2622420, 3059490, 3671388, 4589235, 6118980, 9178470, 18356940]

約数ペア:

[(1, 18356940), (2, 9178470), (3, 6118980), (4, 4589235), (5, 3671388), (6, 3059490), (7, 2622420), (9, 2039660), (10, 1835694), (12, 1529745), (14, 1311210), (15, 1223796), (17, 1079820), (18, 1019830), (20, 917847), (21, 874140), (28, 655605), (30, 611898), (34, 539910), (35, 524484), (36, 509915), (42, 437070), (45, 407932), (51, 359940), (60, 305949), (63, 291380), (68, 269955), (70, 262242), (84, 218535), (85, 215964), (90, 203966), (102, 179970), (105, 174828), (119, 154260), (126, 145690), (140, 131121), (153, 119980), (170, 107982), (180, 101983), (204, 89985), (210, 87414), (238, 77130), (252, 72845), (255, 71988), (306, 59990), (315, 58276), (340, 53991), (357, 51420), (420, 43707), (476, 38565), (510, 35994), (595, 30852), (612, 29995), (630, 29138), (714, 25710), (765, 23996), (857, 21420), (1020, 17997), (1071, 17140), (1190, 15426), (1260, 14569), (1428, 12855), (1530, 11998), (1714, 10710), (1785, 10284), (2142, 8570), (2380, 7713), (2571, 7140), (3060, 5999), (3428, 5355), (3570, 5142), (4284, 4285)]