320974920

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{42457}}^1$

素因数の和:42484

約数の個数: 128

約数和(自身を含む): 1222790400

約数和(自身を除く): 901815480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 168, 180, 189, 210, 216, 252, 270, 280, 315, 360, 378, 420, 504, 540, 630, 756, 840, 945, 1080, 1260, 1512, 1890, 2520, 3780, 7560, 42457, 84914, 127371, 169828, 212285, 254742, 297199, 339656, 382113, 424570, 509484, 594398, 636855, 764226, 849140, 891597, 1018968, 1146339, 1188796, 1273710, 1485995, 1528452, 1698280, 1783194, 1910565, 2292678, 2377592, 2547420, 2674791, 2971990, 3056904, 3566388, 3821130, 4457985, 4585356, 5094840, 5349582, 5731695, 5943980, 7132776, 7642260, 8024373, 8915970, 9170712, 10699164, 11463390, 11887960, 13373955, 15284520, 16048746, 17831940, 21398328, 22926780, 26747910, 32097492, 35663880, 40121865, 45853560, 53495820, 64194984, 80243730, 106991640, 160487460, 320974920]

約数ペア:

[(1, 320974920), (2, 160487460), (3, 106991640), (4, 80243730), (5, 64194984), (6, 53495820), (7, 45853560), (8, 40121865), (9, 35663880), (10, 32097492), (12, 26747910), (14, 22926780), (15, 21398328), (18, 17831940), (20, 16048746), (21, 15284520), (24, 13373955), (27, 11887960), (28, 11463390), (30, 10699164), (35, 9170712), (36, 8915970), (40, 8024373), (42, 7642260), (45, 7132776), (54, 5943980), (56, 5731695), (60, 5349582), (63, 5094840), (70, 4585356), (72, 4457985), (84, 3821130), (90, 3566388), (105, 3056904), (108, 2971990), (120, 2674791), (126, 2547420), (135, 2377592), (140, 2292678), (168, 1910565), (180, 1783194), (189, 1698280), (210, 1528452), (216, 1485995), (252, 1273710), (270, 1188796), (280, 1146339), (315, 1018968), (360, 891597), (378, 849140), (420, 764226), (504, 636855), (540, 594398), (630, 509484), (756, 424570), (840, 382113), (945, 339656), (1080, 297199), (1260, 254742), (1512, 212285), (1890, 169828), (2520, 127371), (3780, 84914), (7560, 42457)]