20261920

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{229}}^1$

素因数の和:330

約数の個数: 96

約数和(自身を含む): 55641600

約数和(自身を除く): 35379680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 79, 80, 112, 140, 158, 160, 224, 229, 280, 316, 395, 458, 553, 560, 632, 790, 916, 1106, 1120, 1145, 1264, 1580, 1603, 1832, 2212, 2290, 2528, 2765, 3160, 3206, 3664, 4424, 4580, 5530, 6320, 6412, 7328, 8015, 8848, 9160, 11060, 12640, 12824, 16030, 17696, 18091, 18320, 22120, 25648, 32060, 36182, 36640, 44240, 51296, 64120, 72364, 88480, 90455, 126637, 128240, 144728, 180910, 253274, 256480, 289456, 361820, 506548, 578912, 633185, 723640, 1013096, 1266370, 1447280, 2026192, 2532740, 2894560, 4052384, 5065480, 10130960, 20261920]

約数ペア:

[(1, 20261920), (2, 10130960), (4, 5065480), (5, 4052384), (7, 2894560), (8, 2532740), (10, 2026192), (14, 1447280), (16, 1266370), (20, 1013096), (28, 723640), (32, 633185), (35, 578912), (40, 506548), (56, 361820), (70, 289456), (79, 256480), (80, 253274), (112, 180910), (140, 144728), (158, 128240), (160, 126637), (224, 90455), (229, 88480), (280, 72364), (316, 64120), (395, 51296), (458, 44240), (553, 36640), (560, 36182), (632, 32060), (790, 25648), (916, 22120), (1106, 18320), (1120, 18091), (1145, 17696), (1264, 16030), (1580, 12824), (1603, 12640), (1832, 11060), (2212, 9160), (2290, 8848), (2528, 8015), (2765, 7328), (3160, 6412), (3206, 6320), (3664, 5530), (4424, 4580)]