72981405

素因数分解:

$3^5\times 5^1\times 7^1\times {\mathrm{8581}}^1$

素因数の和:8608

約数の個数: 48

約数和(自身を含む): 149944704

約数和(自身を除く): 76963299

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 135, 189, 243, 315, 405, 567, 945, 1215, 1701, 2835, 8505, 8581, 25743, 42905, 60067, 77229, 128715, 180201, 231687, 300335, 386145, 540603, 695061, 901005, 1158435, 1621809, 2085183, 2703015, 3475305, 4865427, 8109045, 10425915, 14596281, 24327135, 72981405]

約数ペア:

[(1, 72981405), (3, 24327135), (5, 14596281), (7, 10425915), (9, 8109045), (15, 4865427), (21, 3475305), (27, 2703015), (35, 2085183), (45, 1621809), (63, 1158435), (81, 901005), (105, 695061), (135, 540603), (189, 386145), (243, 300335), (315, 231687), (405, 180201), (567, 128715), (945, 77229), (1215, 60067), (1701, 42905), (2835, 25743), (8505, 8581)]