20392920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{1531}}^1$

素因数の和:1585

約数の個数: 96

約数和(自身を含む): 68112720

約数和(自身を除く): 47719800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 37, 40, 45, 60, 72, 74, 90, 111, 120, 148, 180, 185, 222, 296, 333, 360, 370, 444, 555, 666, 740, 888, 1110, 1332, 1480, 1531, 1665, 2220, 2664, 3062, 3330, 4440, 4593, 6124, 6660, 7655, 9186, 12248, 13320, 13779, 15310, 18372, 22965, 27558, 30620, 36744, 45930, 55116, 56647, 61240, 68895, 91860, 110232, 113294, 137790, 169941, 183720, 226588, 275580, 283235, 339882, 453176, 509823, 551160, 566470, 679764, 849705, 1019646, 1132940, 1359528, 1699410, 2039292, 2265880, 2549115, 3398820, 4078584, 5098230, 6797640, 10196460, 20392920]

約数ペア:

[(1, 20392920), (2, 10196460), (3, 6797640), (4, 5098230), (5, 4078584), (6, 3398820), (8, 2549115), (9, 2265880), (10, 2039292), (12, 1699410), (15, 1359528), (18, 1132940), (20, 1019646), (24, 849705), (30, 679764), (36, 566470), (37, 551160), (40, 509823), (45, 453176), (60, 339882), (72, 283235), (74, 275580), (90, 226588), (111, 183720), (120, 169941), (148, 137790), (180, 113294), (185, 110232), (222, 91860), (296, 68895), (333, 61240), (360, 56647), (370, 55116), (444, 45930), (555, 36744), (666, 30620), (740, 27558), (888, 22965), (1110, 18372), (1332, 15310), (1480, 13779), (1531, 13320), (1665, 12248), (2220, 9186), (2664, 7655), (3062, 6660), (3330, 6124), (4440, 4593)]