51720400

素因数分解:

$2^4\times 5^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:189

約数の個数: 120

約数和(自身を含む): 132602624

約数和(自身を除く): 80882224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 43, 50, 62, 80, 86, 97, 100, 124, 155, 172, 194, 200, 215, 248, 310, 344, 388, 400, 430, 485, 496, 620, 688, 775, 776, 860, 970, 1075, 1240, 1333, 1550, 1552, 1720, 1940, 2150, 2425, 2480, 2666, 3007, 3100, 3440, 3880, 4171, 4300, 4850, 5332, 6014, 6200, 6665, 7760, 8342, 8600, 9700, 10664, 12028, 12400, 13330, 15035, 16684, 17200, 19400, 20855, 21328, 24056, 26660, 30070, 33325, 33368, 38800, 41710, 48112, 53320, 60140, 66650, 66736, 75175, 83420, 104275, 106640, 120280, 129301, 133300, 150350, 166840, 208550, 240560, 258602, 266600, 300700, 333680, 417100, 517204, 533200, 601400, 646505, 834200, 1034408, 1202800, 1293010, 1668400, 2068816, 2586020, 3232525, 5172040, 6465050, 10344080, 12930100, 25860200, 51720400]

約数ペア:

[(1, 51720400), (2, 25860200), (4, 12930100), (5, 10344080), (8, 6465050), (10, 5172040), (16, 3232525), (20, 2586020), (25, 2068816), (31, 1668400), (40, 1293010), (43, 1202800), (50, 1034408), (62, 834200), (80, 646505), (86, 601400), (97, 533200), (100, 517204), (124, 417100), (155, 333680), (172, 300700), (194, 266600), (200, 258602), (215, 240560), (248, 208550), (310, 166840), (344, 150350), (388, 133300), (400, 129301), (430, 120280), (485, 106640), (496, 104275), (620, 83420), (688, 75175), (775, 66736), (776, 66650), (860, 60140), (970, 53320), (1075, 48112), (1240, 41710), (1333, 38800), (1550, 33368), (1552, 33325), (1720, 30070), (1940, 26660), (2150, 24056), (2425, 21328), (2480, 20855), (2666, 19400), (3007, 17200), (3100, 16684), (3440, 15035), (3880, 13330), (4171, 12400), (4300, 12028), (4850, 10664), (5332, 9700), (6014, 8600), (6200, 8342), (6665, 7760)]