280016775

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{3853}}^1$

素因数の和:3905

約数の個数: 72

約数和(自身を含む): 559138320

約数和(自身を除く): 279121545

約数列:

[1, 3, 5, 9, 15, 17, 19, 25, 45, 51, 57, 75, 85, 95, 153, 171, 225, 255, 285, 323, 425, 475, 765, 855, 969, 1275, 1425, 1615, 2907, 3825, 3853, 4275, 4845, 8075, 11559, 14535, 19265, 24225, 34677, 57795, 65501, 72675, 73207, 96325, 173385, 196503, 219621, 288975, 327505, 366035, 589509, 658863, 866925, 982515, 1098105, 1244519, 1637525, 1830175, 2947545, 3294315, 3733557, 4912575, 5490525, 6222595, 11200671, 14737725, 16471575, 18667785, 31112975, 56003355, 93338925, 280016775]

約数ペア:

[(1, 280016775), (3, 93338925), (5, 56003355), (9, 31112975), (15, 18667785), (17, 16471575), (19, 14737725), (25, 11200671), (45, 6222595), (51, 5490525), (57, 4912575), (75, 3733557), (85, 3294315), (95, 2947545), (153, 1830175), (171, 1637525), (225, 1244519), (255, 1098105), (285, 982515), (323, 866925), (425, 658863), (475, 589509), (765, 366035), (855, 327505), (969, 288975), (1275, 219621), (1425, 196503), (1615, 173385), (2907, 96325), (3825, 73207), (3853, 72675), (4275, 65501), (4845, 57795), (8075, 34677), (11559, 24225), (14535, 19265)]