289969225

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{647}}^1$

素因数の和:874

約数の個数: 48

約数和(自身を含む): 445471488

約数和(自身を除く): 155502263

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 175, 197, 325, 455, 647, 985, 1379, 2275, 2561, 3235, 4529, 4925, 6895, 8411, 12805, 16175, 17927, 22645, 34475, 42055, 58877, 64025, 89635, 113225, 127459, 210275, 294385, 448175, 637295, 892213, 1471925, 1656967, 3186475, 4461065, 8284835, 11598769, 22305325, 41424175, 57993845, 289969225]

約数ペア:

[(1, 289969225), (5, 57993845), (7, 41424175), (13, 22305325), (25, 11598769), (35, 8284835), (65, 4461065), (91, 3186475), (175, 1656967), (197, 1471925), (325, 892213), (455, 637295), (647, 448175), (985, 294385), (1379, 210275), (2275, 127459), (2561, 113225), (3235, 89635), (4529, 64025), (4925, 58877), (6895, 42055), (8411, 34475), (12805, 22645), (16175, 17927)]