18403980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1511}}^1$

素因数の和:1559

約数の個数: 96

約数和(自身を含む): 60963840

約数和(自身を除く): 42559860

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 29, 30, 35, 42, 58, 60, 70, 84, 87, 105, 116, 140, 145, 174, 203, 210, 290, 348, 406, 420, 435, 580, 609, 812, 870, 1015, 1218, 1511, 1740, 2030, 2436, 3022, 3045, 4060, 4533, 6044, 6090, 7555, 9066, 10577, 12180, 15110, 18132, 21154, 22665, 30220, 31731, 42308, 43819, 45330, 52885, 63462, 87638, 90660, 105770, 126924, 131457, 158655, 175276, 211540, 219095, 262914, 306733, 317310, 438190, 525828, 613466, 634620, 657285, 876380, 920199, 1226932, 1314570, 1533665, 1840398, 2629140, 3067330, 3680796, 4600995, 6134660, 9201990, 18403980]

約数ペア:

[(1, 18403980), (2, 9201990), (3, 6134660), (4, 4600995), (5, 3680796), (6, 3067330), (7, 2629140), (10, 1840398), (12, 1533665), (14, 1314570), (15, 1226932), (20, 920199), (21, 876380), (28, 657285), (29, 634620), (30, 613466), (35, 525828), (42, 438190), (58, 317310), (60, 306733), (70, 262914), (84, 219095), (87, 211540), (105, 175276), (116, 158655), (140, 131457), (145, 126924), (174, 105770), (203, 90660), (210, 87638), (290, 63462), (348, 52885), (406, 45330), (420, 43819), (435, 42308), (580, 31731), (609, 30220), (812, 22665), (870, 21154), (1015, 18132), (1218, 15110), (1511, 12180), (1740, 10577), (2030, 9066), (2436, 7555), (3022, 6090), (3045, 6044), (4060, 4533)]