205320645

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{311}}^1\times {\mathrm{863}}^1$

素因数の和:1202

約数の個数: 48

約数和(自身を含む): 378473472

約数和(自身を除く): 173152827

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 311, 765, 863, 933, 1555, 2589, 2799, 4315, 4665, 5287, 7767, 12945, 13995, 14671, 15861, 26435, 38835, 44013, 47583, 73355, 79305, 132039, 220065, 237915, 268393, 660195, 805179, 1341965, 2415537, 4025895, 4562681, 12077685, 13688043, 22813405, 41064129, 68440215, 205320645]

約数ペア:

[(1, 205320645), (3, 68440215), (5, 41064129), (9, 22813405), (15, 13688043), (17, 12077685), (45, 4562681), (51, 4025895), (85, 2415537), (153, 1341965), (255, 805179), (311, 660195), (765, 268393), (863, 237915), (933, 220065), (1555, 132039), (2589, 79305), (2799, 73355), (4315, 47583), (4665, 44013), (5287, 38835), (7767, 26435), (12945, 15861), (13995, 14671)]