21689200

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:171

約数の個数: 120

約数和(自身を含む): 58013648

約数和(自身を除く): 36324448

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 43, 50, 52, 65, 80, 86, 97, 100, 104, 130, 172, 194, 200, 208, 215, 260, 325, 344, 388, 400, 430, 485, 520, 559, 650, 688, 776, 860, 970, 1040, 1075, 1118, 1261, 1300, 1552, 1720, 1940, 2150, 2236, 2425, 2522, 2600, 2795, 3440, 3880, 4171, 4300, 4472, 4850, 5044, 5200, 5590, 6305, 7760, 8342, 8600, 8944, 9700, 10088, 11180, 12610, 13975, 16684, 17200, 19400, 20176, 20855, 22360, 25220, 27950, 31525, 33368, 38800, 41710, 44720, 50440, 54223, 55900, 63050, 66736, 83420, 100880, 104275, 108446, 111800, 126100, 166840, 208550, 216892, 223600, 252200, 271115, 333680, 417100, 433784, 504400, 542230, 834200, 867568, 1084460, 1355575, 1668400, 2168920, 2711150, 4337840, 5422300, 10844600, 21689200]

約数ペア:

[(1, 21689200), (2, 10844600), (4, 5422300), (5, 4337840), (8, 2711150), (10, 2168920), (13, 1668400), (16, 1355575), (20, 1084460), (25, 867568), (26, 834200), (40, 542230), (43, 504400), (50, 433784), (52, 417100), (65, 333680), (80, 271115), (86, 252200), (97, 223600), (100, 216892), (104, 208550), (130, 166840), (172, 126100), (194, 111800), (200, 108446), (208, 104275), (215, 100880), (260, 83420), (325, 66736), (344, 63050), (388, 55900), (400, 54223), (430, 50440), (485, 44720), (520, 41710), (559, 38800), (650, 33368), (688, 31525), (776, 27950), (860, 25220), (970, 22360), (1040, 20855), (1075, 20176), (1118, 19400), (1261, 17200), (1300, 16684), (1552, 13975), (1720, 12610), (1940, 11180), (2150, 10088), (2236, 9700), (2425, 8944), (2522, 8600), (2600, 8342), (2795, 7760), (3440, 6305), (3880, 5590), (4171, 5200), (4300, 5044), (4472, 4850)]