20806920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1993}}^1$

素因数の和:2039

約数の個数: 96

約数和(自身を含む): 69989400

約数和(自身を除く): 49182480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 29, 30, 36, 40, 45, 58, 60, 72, 87, 90, 116, 120, 145, 174, 180, 232, 261, 290, 348, 360, 435, 522, 580, 696, 870, 1044, 1160, 1305, 1740, 1993, 2088, 2610, 3480, 3986, 5220, 5979, 7972, 9965, 10440, 11958, 15944, 17937, 19930, 23916, 29895, 35874, 39860, 47832, 57797, 59790, 71748, 79720, 89685, 115594, 119580, 143496, 173391, 179370, 231188, 239160, 288985, 346782, 358740, 462376, 520173, 577970, 693564, 717480, 866955, 1040346, 1155940, 1387128, 1733910, 2080692, 2311880, 2600865, 3467820, 4161384, 5201730, 6935640, 10403460, 20806920]

約数ペア:

[(1, 20806920), (2, 10403460), (3, 6935640), (4, 5201730), (5, 4161384), (6, 3467820), (8, 2600865), (9, 2311880), (10, 2080692), (12, 1733910), (15, 1387128), (18, 1155940), (20, 1040346), (24, 866955), (29, 717480), (30, 693564), (36, 577970), (40, 520173), (45, 462376), (58, 358740), (60, 346782), (72, 288985), (87, 239160), (90, 231188), (116, 179370), (120, 173391), (145, 143496), (174, 119580), (180, 115594), (232, 89685), (261, 79720), (290, 71748), (348, 59790), (360, 57797), (435, 47832), (522, 39860), (580, 35874), (696, 29895), (870, 23916), (1044, 19930), (1160, 17937), (1305, 15944), (1740, 11958), (1993, 10440), (2088, 9965), (2610, 7972), (3480, 5979), (3986, 5220)]