881571025

素因数分解:

$5^2\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1$

素因数の和:239

約数の個数: 72

約数和(自身を含む): 1251777024

約数和(自身を除く): 370205999

約数列:

[1, 5, 19, 23, 25, 31, 95, 115, 137, 155, 361, 437, 475, 575, 589, 685, 713, 775, 1805, 2185, 2603, 2945, 3151, 3425, 3565, 4247, 8303, 9025, 10925, 11191, 13015, 13547, 14725, 15755, 17825, 21235, 41515, 49457, 55955, 59869, 65075, 67735, 78775, 80693, 97681, 106175, 207575, 247285, 257393, 279775, 299345, 338675, 403465, 488405, 1137511, 1236425, 1286965, 1496725, 1533167, 1855939, 2017325, 2442025, 5687555, 6434825, 7665835, 9279695, 28437775, 35262841, 38329175, 46398475, 176314205, 881571025]

約数ペア:

[(1, 881571025), (5, 176314205), (19, 46398475), (23, 38329175), (25, 35262841), (31, 28437775), (95, 9279695), (115, 7665835), (137, 6434825), (155, 5687555), (361, 2442025), (437, 2017325), (475, 1855939), (575, 1533167), (589, 1496725), (685, 1286965), (713, 1236425), (775, 1137511), (1805, 488405), (2185, 403465), (2603, 338675), (2945, 299345), (3151, 279775), (3425, 257393), (3565, 247285), (4247, 207575), (8303, 106175), (9025, 97681), (10925, 80693), (11191, 78775), (13015, 67735), (13547, 65075), (14725, 59869), (15755, 55955), (17825, 49457), (21235, 41515)]