55408275

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{997}}^1$

素因数の和:1045

約数の個数: 72

約数和(自身を含む): 112614320

約数和(自身を除く): 57206045

約数列:

[1, 3, 5, 9, 13, 15, 19, 25, 39, 45, 57, 65, 75, 95, 117, 171, 195, 225, 247, 285, 325, 475, 585, 741, 855, 975, 997, 1235, 1425, 2223, 2925, 2991, 3705, 4275, 4985, 6175, 8973, 11115, 12961, 14955, 18525, 18943, 24925, 38883, 44865, 55575, 56829, 64805, 74775, 94715, 116649, 170487, 194415, 224325, 246259, 284145, 324025, 473575, 583245, 738777, 852435, 972075, 1231295, 1420725, 2216331, 2916225, 3693885, 4262175, 6156475, 11081655, 18469425, 55408275]

約数ペア:

[(1, 55408275), (3, 18469425), (5, 11081655), (9, 6156475), (13, 4262175), (15, 3693885), (19, 2916225), (25, 2216331), (39, 1420725), (45, 1231295), (57, 972075), (65, 852435), (75, 738777), (95, 583245), (117, 473575), (171, 324025), (195, 284145), (225, 246259), (247, 224325), (285, 194415), (325, 170487), (475, 116649), (585, 94715), (741, 74775), (855, 64805), (975, 56829), (997, 55575), (1235, 44865), (1425, 38883), (2223, 24925), (2925, 18943), (2991, 18525), (3705, 14955), (4275, 12961), (4985, 11115), (6175, 8973)]