258889725

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{2633}}^1$

素因数の和:2691

約数の個数: 72

約数和(自身を含む): 509520960

約数和(自身を除く): 250631235

約数列:

[1, 3, 5, 9, 15, 19, 23, 25, 45, 57, 69, 75, 95, 115, 171, 207, 225, 285, 345, 437, 475, 575, 855, 1035, 1311, 1425, 1725, 2185, 2633, 3933, 4275, 5175, 6555, 7899, 10925, 13165, 19665, 23697, 32775, 39495, 50027, 60559, 65825, 98325, 118485, 150081, 181677, 197475, 250135, 302795, 450243, 545031, 592425, 750405, 908385, 1150621, 1250675, 1513975, 2251215, 2725155, 3451863, 3752025, 4541925, 5753105, 10355589, 11256075, 13625775, 17259315, 28765525, 51777945, 86296575, 258889725]

約数ペア:

[(1, 258889725), (3, 86296575), (5, 51777945), (9, 28765525), (15, 17259315), (19, 13625775), (23, 11256075), (25, 10355589), (45, 5753105), (57, 4541925), (69, 3752025), (75, 3451863), (95, 2725155), (115, 2251215), (171, 1513975), (207, 1250675), (225, 1150621), (285, 908385), (345, 750405), (437, 592425), (475, 545031), (575, 450243), (855, 302795), (1035, 250135), (1311, 197475), (1425, 181677), (1725, 150081), (2185, 118485), (2633, 98325), (3933, 65825), (4275, 60559), (5175, 50027), (6555, 39495), (7899, 32775), (10925, 23697), (13165, 19665)]